It took thousands, nay, millions of years for humankind to evolve to the point where its opposable thumbs allowed the species to finally achieve success in its tumultuous struggle to twist open a beer.
--The Official Harvard Student Agencies Bartending Course, 3rd Edition
This book covers the basics of bartending, including mixology. It is a work in progress; refer to chapter 10 for ways in which you may help improve it.