Warren Buffett

Buffett worked from 1951 to 1954 at Buffett-Falk & Co. as an investment salesman; from 1954 to 1956 at Graham-Newman Corp. as a securities analyst; from 1956 to 1969 at Buffett Partnership, Ltd. as a general partner; and from 1970 as chairman and CEO of Berkshire Hathaway Inc.

In 1951,[31] Buffett discovered that Graham was on the board of GEICO insurance. Taking a train to Washington, D.C., on a Saturday, he knocked on the door of GEICO's headquarters until a janitor admitted him. There he met Lorimer Davidson, GEICO's vice president, and the two discussed the insurance business for hours. Davidson would eventually become Buffett's lifelong friend and a lasting influence,[32] and would later recall that he found Buffett to be an "extraordinary man" after only fifteen minutes. Buffett wanted to work on Wall Street but both his father and Ben Graham urged him not to. He offered to work for Graham for free, but Graham refused.[33]

Buffett returned to Omaha and worked as a stockbroker while taking a Dale Carnegie public speaking course.[34] Using what he learned, he felt confident enough to teach an "Investment Principles" night class at the University of Nebraska-Omaha. The average age of his students was more than twice his own. During this time he also purchased a Sinclair gas station as a side investment but it was unsuccessful.[35]

In 1952,[36] Buffett married Susan Thompson at Dundee Presbyterian Church. The next year they had their first child, Susan Alice. In 1954, Buffett accepted a job at Benjamin Graham's partnership. His starting salary was $12,000 a year (about $131,000 today).[25] There he worked closely with Walter Schloss. Graham was adamant that stock picks should provide a wide margin of safety after weighing the trade-off between their price and their intrinsic value. That same year the Buffetts had their second child, Howard Graham. In 1956, Benjamin Graham retired and closed his partnership. At this time Buffett's personal savings were over $174,000 (about $1.87 million today)[25] and concurrently founded Buffett Partnership Ltd.

Buffett's home in Omaha, Nebraska

In 1957, Buffett operated three investment partnerships. He purchased a five-bedroom stucco house in Omaha, where he still lives, for $31,500.[37][38] In 1958 the Buffetts' third child, Peter Andrew, was born. Buffett operated five partnerships that year. In 1959, the company grew to six partnerships and Buffett met future partner Charlie Munger. By 1960, Buffett operated seven investment partnerships. He asked one of his partners, a doctor, to find ten other doctors willing to invest $10,000 each in his partnership. Eventually, eleven agreed, and Buffett pooled their money with a mere $100 original investment of his own.

In 1961, Buffett revealed that 35% of the partnership's assets were invested in the Sanborn Map Company. He explained that Sanborn stock sold for only $45 per share in 1958, but the company's investment portfolio was worth $65 per share. This meant that Sanborn's map business was being valued at "minus $20". Buffett eventually purchased 23% of the company's outstanding shares as an activist investor, obtaining a seat for himself on the board of directors, and allied with other dissatisfied shareholders to control 44% of the shares. To avoid a proxy fight, the board offered to repurchase shares at fair value, paying with a portion of its investment portfolio. 77% of the outstanding shares were turned in.[39][40] Buffett had reaped a 50 percent return on investment in just two years.[41]

In 1962, Buffett became a millionaire because of his partnerships, which in January 1962 had an excess of $7,178,500, of which over $1,025,000 belonged to Buffett. He merged these partnerships into one. Buffett invested in and eventually took control of a textile manufacturing company, Berkshire Hathaway. He began buying shares in Berkshire from Seabury Stanton, the owner, whom he later fired. Buffett's partnerships began purchasing shares at $7.60 per share. In 1965, when Buffett's partnerships began purchasing Berkshire aggressively, they paid $14.86 per share while the company had working capital of $19 per share. This did not include the value of fixed assets (factory and equipment). Buffett took control of Berkshire Hathaway at a board meeting and named a new president, Ken Chace, to run the company. In 1966, Buffett closed the partnership to new money. He later claimed that the textile business had been his worst trade.[42] He then moved the business into the insurance sector, and, in 1985, the last of the mills that had been the core business of Berkshire Hathaway was sold.

In a second letter, Buffett announced his first investment in a private business — Hochschild, Kohn and Co, a privately owned Baltimore department store. In 1967, Berkshire paid out its first and only dividend of 10 cents.[43] In 1969, Buffett liquidated the partnership and transferred their assets to his partners including shares of Berkshire Hathaway. In 1970, Buffett began writing his now-famous annual letters to shareholders. He lived solely on his salary of $50,000 per year and his outside investment income.

In 1973, Berkshire began to acquire stock in the Washington Post Company. Buffett became close friends with Katharine Graham, who controlled the company and its flagship newspaper and joined its board. In 1974, the SEC opened a formal investigation into Buffett and Berkshire's acquisition of Wesco Financial, due to possible conflict of interest. No charges were brought. In 1977, Berkshire indirectly purchased the Buffalo Evening News for $32.5 million. Antitrust charges started, instigated by its rival, the Buffalo Courier-Express. Both papers lost money until the Courier-Express folded in 1982.

In 1979, Berkshire began to acquire stock in ABC. Capital Cities announced a $3.5 billion purchase of ABC on March 18, 1985, surprising the media industry, as ABC was four times bigger than Capital Cities at the time. Buffett helped finance the deal in return for a 25% stake in the combined company.[44] The newly merged company, known as Capital Cities/ABC (or CapCities/ABC), was forced to sell some stations due to Federal Communications Commission ownership rules. The two companies also owned several radio stations in the same markets.[45]

In 1987, Berkshire Hathaway purchased a 12% stake in Salomon Inc., making it the largest shareholder and Buffett a director. In 1990, a scandal involving John Gutfreund (former CEO of Salomon Brothers) surfaced. A rogue trader, Paul Mozer, was submitting bids in excess of what was allowed by Treasury rules. When this was brought to Gutfreund's attention, he did not immediately suspend the rogue trader. Gutfreund left the company in August 1991.[46] Buffett became chairman of Salomon until the crisis passed.[47]

In 1988, Buffett began buying The Coca-Cola Company stock, eventually purchasing up to 7% of the company for $1.02 billion.[48] It would turn out to be one of Berkshire's most lucrative investments and one which it still holds.[49]

In 1998 Buffett acquired General Re (Gen Re) as a subsidiary in a deal that presented difficulties—according to the Rational Walk investment website, "underwriting standards proved to be inadequate", while a "problematic derivatives book" was resolved after numerous years and a significant loss.[50] Gen Re later provided reinsurance after Buffett became involved with Maurice R. Greenberg at AIG in 2002.[51]

Buffett meets with President Barack Obama at the White House in July 2011.

During a 2005 investigation of an accounting fraud case involving AIG, Gen Re executives became implicated. On March 15, 2005, the AIG board forced Greenberg to resign from his post as chairman and CEO after New York state regulators claimed that AIG had engaged in questionable transactions and improper accounting.[52] On February 9, 2006, AIG agreed to pay a $1.6 billion fine.[53] In 2010, the U.S. government agreed to a $92 million settlement with Gen Re, allowing the Berkshire Hathaway subsidiary to avoid prosecution in the AIG case. Gen Re also made a commitment to implement "corporate governance concessions", which required Berkshire Hathaway's chief financial officer to attend General Re's audit committee meetings and mandated the appointment of an independent director.[50]

In 2002, Buffett entered in $11 billion worth of forward contracts to deliver U.S. dollars against other currencies. By April 2006, his total gain on these contracts was over $2 billion. Buffett announced in June 2006 that he would gradually give away 85% of his Berkshire holdings to five foundations in annual gifts of stock, starting in July 2006—the largest contribution going to the Bill and Melinda Gates Foundation.[54]

In 2007, in a letter to shareholders, Buffett announced that he was looking for a younger successor, or perhaps successors, to run his investment business.[55]

Buffett ran into criticism during the subprime mortgage crisis of 2007 and 2008, part of the Great Recession starting in 2007, that he had allocated capital too early resulting in suboptimal deals.[56] "Buy American. I am." he wrote for an opinion piece published in the New York Times in 2008.[57] Buffett called the downturn in the financial sector that started in 2007 "poetic justice".[58] Buffett's Berkshire Hathaway suffered a 77% drop in earnings during Q3 2008 and several of his later deals suffered large mark-to-market losses.[59]

Berkshire Hathaway acquired 10% perpetual preferred stock of Goldman Sachs.[60] Some of Buffett's put options (European exercise at expiry only) that he wrote (sold) were running at around $6.73 billion mark-to-market losses as of late 2008.[61] The scale of the potential loss prompted the SEC to demand that Berkshire produce, "a more robust disclosure" of factors used to value the contracts.[61] Buffett also helped Dow Chemical pay for its $18.8 billion takeover of Rohm & Haas. He thus became the single largest shareholder in the enlarged group with his Berkshire Hathaway, which provided $3 billion, underlining his instrumental role during the crisis in debt and equity markets.[62]

In 2008, Buffett became the richest person in the world, with a total net worth estimated at $62 billion[63] by Forbes and at $58 billion[64] by Yahoo, overtaking Bill Gates, who had been number one on the Forbes list for 13 consecutive years.[65] In 2009, Gates regained the top position on the Forbes list, with Buffett shifted to second place. Both of the men's values dropped, to $40 billion and $37 billion respectively—according to Forbes, Buffett lost $25 billion over a 12-month period during 2008/2009.[66]

In October 2008, the media reported that Buffett had agreed to buy General Electric (GE) preferred stock.[67] The operation included special incentives: he received an option to buy three billion shares of GE stock, at $22.25, over the five years following the agreement, and Buffett also received a 10% dividend (callable within three years). In February 2009, Buffett sold some Procter & Gamble Co. and Johnson & Johnson shares from his personal portfolio.[68]

In addition to suggestions of mistiming, the wisdom in keeping some of Berkshire's major holdings, including The Coca-Cola Company, which in 1998 peaked at $86, raised questions. Buffett discussed the difficulties of knowing when to sell in the company's 2004 annual report:

That may seem easy to do when one looks through an always-clean, rear-view mirror. Unfortunately, however, it's the windshield through which investors must peer, and that glass is invariably fogged.[69]

In March 2009, Buffett said in a cable television interview that the economy had "fallen off a cliff ... Not only has the economy slowed down a lot, but people have really changed their habits like I haven't seen". Additionally, Buffett feared that inflation levels that occurred in the 1970s—which led to years of painful stagflation—might re-emerge.[70][71]

On August 14, 2014, the price of Berkshire Hathaway's shares hit $200,000 a share for the first time, capitalizing the company at $328 billion. While Buffett had given away much of his stock to charities by this time, he still held 321,000 shares worth $64.2 billion. On August 20, 2014, Berkshire Hathaway was fined $896,000 for failing to report December 9, 2013, purchase of shares in USG Corporation as required.[72]

In 2009, Buffett invested $2.6 billion as a part of Swiss Re's campaign to raise equity capital.[73][74] Berkshire Hathaway already owned a 3% stake, with rights to own more than 20%.[75] Also in 2009, Buffett acquired Burlington Northern Santa Fe Corp. for $34 billion in cash and stock. Alice Schroeder, author of Snowball, said that a key reason for the purchase was to diversify Berkshire Hathaway from the financial industry.[76] Measured by market capitalization in the Financial Times Global 500, Berkshire Hathaway was the eighteenth largest corporation in the world as of June 2009.[77]

In 2009, Buffett divested his failed investment in ConocoPhillips, saying to his Berkshire investors,

I bought a large amount of ConocoPhillips stock when oil and gas prices were near their peak. I in no way anticipated the dramatic fall in energy prices that occurred in the last half of the year. I still believe the odds are good that oil sells far higher in the future than the current $40–$50 price. But so far I have been dead wrong. Even if prices should rise, moreover, the terrible timing of my purchase has cost Berkshire several billion dollars.[78]

The merger with the Burlington Northern Santa Fe Railway (BNSF) closed upon BNSF shareholder approval during Q1 of 2010. This deal was valued at approximately $44 billion (with $10 billion of outstanding BNSF debt) and represented an increase of the previously existing stake of 22%.[79][80] In June 2010, Buffett defended the credit-rating agencies for their role in the US financial crisis, claiming:

Very, very few people could appreciate the bubble. That's the nature of bubbles – they're mass delusions.[81]

On March 18, 2011, Goldman Sachs was given Federal Reserve approval to buy back Berkshire's preferred stock in Goldman. Buffett had been reluctant to give up the stock, which averaged $1.4 million in dividends per day,[82][83] saying:

I'm going to be the Osama bin Laden of capitalism. I'm on my way to an unknown destination in Asia where I'm going to look for a cave. If the U.S. Armed forces can't find Osama bin Laden in 10 years, let Goldman Sachs try to find me.[84]

In November 2011, it was announced that over the course of the previous eight months, Buffett had bought 64 million shares of International Business Machine Corp (IBM) stock, worth around $11 billion. This unanticipated investment raised his stake in the company to around 5.5 percent—the largest stake in IBM alongside that of State Street Global Advisors. Buffett had said on numerous prior occasions that he would not invest in technology because he did not fully understand it, so the move came as a surprise to many investors and observers. During the interview, in which he revealed the investment to the public, Buffett stated that he was impressed by the company's ability to retain corporate clients and said, "I don't know of any large company that really has been as specific on what they intend to do and how they intend to do it as IBM".[85]

In May 2012, Buffett's acquisition of Media General, consisting of 63 newspapers in the south-eastern U.S., was announced.[86] The company was the second news print purchase made by Buffett in one year.[87]

Interim publisher James W. Hopson announced on July 18, 2013, that the Press of Atlantic City would be sold to Buffett's BH Media Group by ABARTA, a private holding company based in Pittsburgh, U.S. At the Berkshire shareholders meeting in May 2013, Buffett explained that he did not expect to "move the needle" at Berkshire with newspaper acquisitions, but he anticipates an annual return of 10 percent. The Press of Atlantic City became Berkshire's 30th daily newspaper, following other purchases such as Virginia, U.S.' Roanoke Times and The Tulsa World in Oklahoma, U.S.[88]

During a presentation to Georgetown University students in Washington, D.C., in late September 2013, Buffett compared the U.S. Federal Reserve to a hedge fund and stated that the bank is generating "$80 billion or $90 billion a year probably" in revenue for the U.S. government. Buffett also advocated further on the issue of wealth equality in society:

We have learned to turn out lots of goods and services, but we haven't learned as well how to have everybody share in the bounty. The obligation of a society as prosperous as ours is to figure out how nobody gets left too far behind.[89]

After the difficulties of the economic crisis, Buffett managed to bring its company back to its pre-recession standards: in Q2 2014, Berkshire Hathaway made $6.4 billion in net profit, the most it had ever made in a three-month period.[90]

Buffett has been a supporter of index funds for people who are either not interested in managing their own money or don't have the time. Buffett is skeptical that active management can outperform the market in the long run, and has advised both individual and institutional investors to move their money to low-cost index funds that track broad, diversified stock market indices. Buffett said in one of his letters to shareholders that "when trillions of dollars are managed by Wall Streeters charging high fees, it will usually be the managers who reap outsized profits, not the clients".[96] In 2007, Buffett made a bet with numerous managers that a simple S&P 500 index fund will outperform hedge funds that charge exorbitant fees. By 2017, the index fund was outperforming every hedge fund that made the bet against Buffett.[96]

Buffet has a long-standing aversion to using the services of investment banks via Berkshire Hathaway.[97] This dynamic was also reported in Barron's,[98] Insider,[99] and Seeking Alpha,[100] among others.

On April 11, 2012, Buffett was diagnosed with stage I prostate cancer during a routine test.[139] He announced he would begin two months of daily radiation treatment from mid-July. In a letter to shareholders, Buffett said he felt "great – as if I were in my normal excellent health – and my energy level is 100 percent".[139] On September 15, 2012, Buffett announced that he had completed the full 44-day radiation treatment cycle, saying "it's a great day for me" and "I am so glad to say that's over".[140]

Buffett described the health care reform under President Barack Obama as insufficient to deal with the costs of health care in the US, though he supports its aim of expanding health insurance coverage.[190] Buffett compared health care costs to a tapeworm, saying that they compromise US economic competitiveness by increasing manufacturing costs.[190] Buffett said in 2010 that it was not sustainable for the U.S. to devote 17% of its GDP to healthcare expenditure, noting that many other nations spent a much smaller proportion of their GDP on health expenditures, with better healthcare outcomes.[191] Buffett said, "If you want the very best, I mean if you want to spend a million dollars to prolong your life 3 months in a coma or something then the US is probably the best", but he also said that other countries spend much less and receive much more in health care value (visits, hospital beds, doctors and nurses per capita).[192]

Buffett faults the incentives in the United States medical industry, that payers reimburse doctors for procedures (fee-for-service) leading to unnecessary care (overutilization), instead of paying for results.[193] He cited Atul Gawande's 2009 article in the New Yorker[194] as a useful consideration of US health care, with its documentation of unwarranted variation in Medicare expenditures between McAllen, Texas and El Paso, Texas.[193] Buffett raised the problem of lobbying by the medical industry, saying that they are very focused on maintaining their income.[195]

Buffett has expressed concerns about unchecked population growth. In 2009, he met with several other billionaires to discuss healthcare, education and slowing population growth. Called "The Good Club" by an insider, the billionaires had given away $45 billion to philanthropic causes and included Oprah Winfrey, Michael Bloomberg and David Rockefeller, Jr.[196] The meeting has drawn criticism from some right-wing blogs, with some believing the group to be a part of a secret sterilization society.[197]

Buffett is a long time supporter of family planning. The Buffett Foundation has given over $1.5 billion to abortion research to include $427 million to Planned Parenthood.[198]

Buffett stated that he only paid 19% of his income for 2006 ($48.1 million) in total federal taxes (due to their source as dividends and capital gains) while his employees paid 33% of theirs, despite making much less money.[199] Regarding how little he pays in taxes compared to his employees, he said, "How can this be fair? How can this be right? There's class warfare, all right, but it's my class, the rich class, that's making war, and we're winning."[200][201] After Donald Trump accused him of taking "massive deductions", Buffett countered, "I have copies of all 72 of my returns and none uses a carryforward."[202]

Buffett favors the inheritance tax, saying that repealing it would be like "choosing the 2020 Olympic team by picking the eldest sons of the gold-medal winners in the 2000 Olympics".[203] In 2007, Buffett testified before the Senate and urged them to preserve the estate tax so as to avoid a plutocracy.[204] Some critics argued that Buffett (through Berkshire Hathaway) has a personal interest in the continuation of the estate tax, since Berkshire Hathaway benefited from the estate tax in past business dealings and had developed and marketed insurance policies to protect policy holders against future estate tax payments.[205]

Buffett believes government should not be in the business of gambling, or legalizing casinos, calling it a tax on ignorance.[206]

The trade deficit induced Buffett to enter the foreign currency market for the first time in 2002. He substantially reduced his stake in 2005 as changing interest rates increased the costs of holding currency contracts. Buffett remained bearish on the dollar, stating that he was looking to acquire companies with substantial foreign revenues. Buffett has been critical of gold as an investment, with his critique being based primarily on its non-productive nature. In a 1998 address at Harvard, Buffett said:

It gets dug out of the ground in Africa, or someplace. Then we melt it down, dig another hole, bury it again and pay people to stand around guarding it. It has no utility. Anyone watching from Mars would be scratching their head.

In 1977, about stocks, gold, farmland and inflation, he stated:

Stocks are probably still the best of all the poor alternatives in an era of inflation – at least they are if you buy in at appropriate prices.[207]

Buffett invested in PetroChina Company Limited and in a rare move, posted a commentary[208] on Berkshire Hathaway's website stating why he would not divest over its connection with the Sudanese civil war that caused Harvard to divest. He sold this stake soon afterwards, sparing him the billions of dollars he would have lost had he held on to the company in the midst of the steep drop in oil prices beginning in the summer of 2008.

In October 2008, Buffett invested $230 million for 10% of battery maker BYD Company (SEHK: 1211), which runs a subsidiary of electric automobile manufacturer BYD Auto. In less than one year, the investment reaped over 500% return.[209]

During the RJR Nabisco, Inc. hostile takeover fight in 1987, Buffett was quoted as telling John Gutfreund:[210]

I'll tell you why I like the cigarette business. It costs a penny to make. Sell it for a dollar. It's addictive. And there's fantastic brand loyalty.

— Buffett, quoted in Barbarians at the Gate: The Fall of RJR Nabisco

Speaking at Berkshire Hathaway Inc.'s 1994 annual meeting, Buffett said investments in tobacco are:[211]

fraught with questions that relate to societal attitudes and those of the present administration. I would not like to have a significant percentage of my net worth invested in tobacco businesses. The economy of the business may be fine, but that doesn't mean it has a bright future.

— Buffett, Berkshire Hathaway annual meeting

In 2007, Buffett's PacifiCorp, a subsidiary of his MidAmerican Energy Company, canceled six proposed coal-fired power plants. These included Utah's Intermountain Power Project Unit 3, Jim Bridger Unit 5, and four proposed plants previously included in PacifiCorp's Integrated Resource Plan. The cancellations came in the wake of pressure from regulators and citizen groups.[212]

Native American tribes and salmon fishermen sought to win support from Buffett for a proposal to remove four hydroelectric dams from the Klamath River owned by PacifiCorp which is a Berkshire Hathaway company. David Sokol responded on Buffett's behalf, stating that the FERC would decide the question.[213][214]

He has been a strong proponent of stock option expensing on corporate income statements. At the 2004 annual meeting, he lambasted a bill before the United States Congress that would consider only some company-issued stock options compensation as an expense, likening the bill to one that was almost passed by the Indiana House of Representatives to change the value of Pi from 3.14159 to 3.2 through legislative fiat.[215]

When a company gives something of value to its employees in return for their services, it is clearly a compensation expense. And if expenses don't belong in the earnings statement, where in the world do they belong?[216]

In May 2012, Buffett said he had avoided buying stock in new social media companies such as Facebook and Google because it is hard to estimate future value. He also stated that initial public offering (IPO) of stock are almost always bad investments. Investors should be looking to companies that will have good value in ten years.[217]

In an interview with CNBC in January 2018, Buffett said that the recent craze over Bitcoin and other cryptocurrencies won't end well, adding that "when it happens or how or anything else, I don't know". But he said he would not take a short position on bitcoin futures.[218]

In October 2008, USA Today reported at least 47 books were in print with Buffett's name in the title. The article quoted the CEO of Borders Books, George Jones, as saying that the only other living persons named in as many book titles were U.S. presidents, world political figures and the Dalai Lama.[220] Buffett said that his own personal favorite is a collection of his essays called The Essays of Warren Buffett,[221] which he described as "a coherent rearrangement of ideas from my annual report letters".[220]

Books or publications by Buffett:

• The Essays of Warren Buffett : Lessons for Corporate America, Warren Buffett and Lawrence A. Cunningham, The Cunningham Group; revised edition (April 11, 2001). ISBN 978-0-9664461-1-1.
• The Essays of Warren Buffett: Lessons for Corporate America, Second Edition, Warren E. Buffett and Lawrence A. Cunningham, The Cunningham Group; 2nd edition (April 14, 2008). ISBN 978-0-9664461-2-8.

Some best-selling, or otherwise notable, books about Buffett:

• Carol J. Loomis, Tap Dancing to Work: Warren Buffett on Practically Everything, 1966–2012: A Fortune Magazine Book.
• Preston Pysh, Warren Buffett's Three Favorite Books[222] (an interactive book that references Buffett's Books for online videos).[220]
• Roger Lowenstein, Buffett, Making of an American Capitalist.
• Robert Hagstrom, The Warren Buffett Way.[220][223]
• Alice Schroeder, The Snowball: Warren Buffett and the Business of Life[224] (written with Buffett's cooperation).[225]
• Mary Buffett and David Clark, Buffettology[226] and four subsequent books (combined sales of more than 1.5 million copies).[220]
• Janet Lowe, Warren Buffett Speaks: Wit and Wisdom from the World's Greatest Investor.[227]
• John Train, The Midas Touch: The Strategies That Have Made Warren Buffett 'America's Preeminent Investor'.[228]
• Andrew Kilpatrick, Of Permanent Value: The Story of Warren Buffett[229] (the longest of the books about Buffett, with 330 chapters, 1,874 pages and 1,400 photos, weighing 10.2 pounds).[220]
• Robert P. Miles (2004). Warren Buffett Wealth: Principles and Practical Methods Used by the World's Greatest Investor. John Wiley and Sons. ISBN 978-0-471-46511-9.
• John P. Reese, "The Guru Investor: How to Beat the Market Using History's Best Investment Strategies"[230] (includes step-by-step stock-picking method based on Buffett's approach).
• Tavakoli, Janet M. (January 6, 2009). Dear Mr. Buffett: What an Investor Learns 1,269 Miles from Wall Street. John Wiley & Sons. ISBN 978-0-470-44273-9.
• Janjigian, Vahan (May 1, 2008). Even Buffett Isn't Perfect: What You Can--and Can't--Learn from the World's Greatest Investor. Penguin. ISBN 9781440631474.