If you have a basic understanding of value chain concepts and are working your way through Path 2: In-depth Concepts, you can navigate by clicking the topic name at the bottom right of the page or via the table of contents.
If you are just browsing, feel free to select topics of interest below or from the table of contents. You can quickly identify the level of information you are viewing by noting the color.
Additional resources are listed at the bottom of the page including: 1) Related and 2) Featured. These areas contain links to wiki pages, screencasts, online courses, articles, and other informative resources.