Re: Create a book
Not as such, as far as I know. There were some people working in this direction some time ago, but I'm not sure if there was some new code produced somewhere (not in tiki svn main codebase in sourceforget.net)
The basic feature is through Structures, and then, you can print all pages from the structure in one go into a single html. And from there, you can create your pdf by a local desktop application, after fine tuning your document, for instance (footer, header, page numbers, etc). That's how we produced the former documentation book for Tiki 1.9 years ago:
http://doc.tiki.org/Tiki19beta.pdf