From Templar Connect
Copy books are self-published short tracts, similar in some ways to real-life 'zines. They can be on any subject, frequently made under pseudonyms, and not so much published as made at a copy store and left at bus stops and in taxis. Reagan mentions that there are some "fake" copy books made by commercial publishers. Ben enjoys them with some guilt and has been working on his own for some time. [] It is considered good manners to leave them "floating" and to write your own when finished reading them.