(This is not a regular wikibooks entry, but conceived to be a printed advertising poster for use in colleges to attract teachers and students to contribute to wikibooks. I think it's appropriate to discuss formatting, distribution, whatever in Discussion.)
WANT FREE TEXTBOOKS?
Help write them!
Wikibooks (www.wikibooks.org) is developing free, open content textbooks, manuals and other texts.
We currently have around 250 textbooks in various stages of development, of which every page is open to your revision and addition.