Concept
Version 3
Created by Boundless
Table of Contents
![Example Boundless table of contents](../../../../../../../../../figures.boundless-cdn.com/32017/full/1ljjgimbtqevzgb3wnfz.jpg)
Example Boundless table of contents
A screenshot of the Boundless table of contents for U.S. History, demonstrating the chapter-section-concept structure and numbering.
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources: