I picked up this book a while ago, and since it's kind of below the radar, I figured I'd give it a quick review.
I really enjoyed reading it. The writing is pretty good and has a sense of humor. Because the writer doesn't take himself too seriously, the book is really approachable.
As far as the actual content, it is more a breadth-first overview of a lot of different things you should learn while in the rank range (SDK). While that might seem like shallow overview, the book itself is hundreds of pages long, so each topic has room to be covered enough to teach quite a bit. For example, this book has the single most logical and coherent introduction to probes that I have ever read. Not that I've read too many, but it's a good start. Check out the book if you want a theory book that's easy to read and covers a lot of ground.
Site:
http://www.sundaygolessons.com/I'm going to have to go through the book cover-to-cover a few times to really absorb all of it, I think. Good stuff.
Someday I want to be strong enough to earn KGS[-].