Awesome! I love the wikibooks project. For the uninitiated, a wiki is a webpage that can be edited by anyone. Wikipedia is the best known example, and wikibooks is created by the same organization.

Wikibooks allows authors to delve deeper into a subject, and some fantastic works have come out through it. I'm looking forward to taking a look at this bartending one!

There is a great Botany wikibook as well.