Have to agree that book is a tome of greatness! I have started making my first now, but am going to nick the neck off an existing guitar. Basically I'm just copying the measurements of my Mockingbird as I will be using a fixed bridge that is almost the same dimensions as the basic strat-style trem that was on the 'Bird. But for my next project (inspired by Jonathon's Emerald beauty!) I am aiming to be more ambitious, so the Book will be constantly open on my workbench. :D
Good luck with your first build mate, hope you'll be having as much fun with it as I'm having with mine! :D