The Secret (Byrne book)

The book has been translated into 50 languages and has sold over 30 million copies.[11] Due partly to an appearance on The Oprah Winfrey Show, the book and film had grossed $300 million in sales by 2009.[12] Byrne has subsequently released Secret merchandise and several related books.

US TV host Oprah Winfrey is a proponent of the book. On The Larry King Show she said that the message of The Secret is the message she's been trying to share with the world on her show for the past 21 years.[13] Author Rhonda Byrne was later invited to her show along with people who swear by The Secret.[14]

Valerie Frankel of Good Housekeeping wrote an article about her trying the principles of The Secret for four weeks. While she reached some of her goals, others had improved. Frankel's final assessment is: "Counting my blessings has been uplifting, reminding me of what's already great about my life. Visualization has forced me to pay attention to what I really desire. And laughing is never a bad idea. If you ignore The Secret's far-too-simplistic maxims (no, you will not be doomed to a miserable life for thinking negative thoughts) and the hocus-pocus (the cosmos isn't going to deliver a new car; it's busy), there's actually some helpful advice in the book. But it's nothing you don't already know."[15]

In 2009, Barbara Ehrenreich published Bright-Sided: How the Relentless Promotion of Positive Thinking Has Undermined America as a reaction to self-help books such as The Secret, claiming that they promote political complacency and a failure to engage with reality.[16][17]

Mark Manson, author of The Subtle Art of Not Giving a F*ck, is one of the harshest critics, writing that the book is "full of misplaced clichés, silly quotes, and superstitious drivel," and calls it a "playbook for entitlement and self-absorption," which "anybody who reads it and implements its advice ... will likely make themselves worse off in the long run."[18]

John G. Stackhouse Jr. has provided historical context, locating Byrne's book in the tradition of New Thought and popular religion, and concluding that "it isn't new, and it isn't a secret".[19]

Byrne's scientific claims, in particular concerning quantum physics, have been rejected by a range of authors including Christopher Chabris and Daniel Simons at The New York Times[20] and Harvard physicist Lisa Randall.[21] Mary Carmichael and Ben Radford, writing for the Center for Inquiry, have also pointed out that The Secret has no scientific foundation, stating that Byrne's book represents "a time-worn trick of mixing banal truisms with magical thinking and presenting it as some sort of hidden knowledge: basically, it's the new New Thought."[22]