I've had a question about where to add information about Cayley diagrams in the chapter summaries since it wasn't in the book. Instead of making a new page in the wiki, let's just add it to the chapter 4 summary on permutations. Actually, it doesn't really matter where the information goes, but it should go someplace. If anyone wants me to scan an image to insert, feel free to ask.
Cayley diagrams
Summary:
Add to chapter summaries.