I like DGB as well. Although, I wish he would write a sequel covering more of the beer styles he doesn't really cover in that book. Also, I felt like he focused more on the analyses of "second-round NHC" beer recipes than commercial ones. But, don't get me wrong... it's still a great book to which I refer frequently.
I'm also a big fan of New Brewing Lager Beer. Noonan comes across like he really knows his $h!t, not like he researched the information just for the book. It's fairly technical, but it made me a better brewer because he explains the "why's" of things that most other books don't explain for fear of losing the reader. I realized some common misconceptions in homebrewing from reading that book and that knowing your malt analysis can significantly improve your beer. And it's not just for lagers anymore.