Hate to be a wetblanket and actually stay on topic - far and away the best book on pot-growing is "Marijuana Horticulture: The Indoor/Outdoor Medical Grower's Bible" by Jorge Cervantes (a pseudonym). 512 color pages with 1120 color pix. High Times blurbs on the cover that this book has "the best step-by-step information available anywhere. If you want to grow weed, this is the book you need." Cover price is $25 new but I bet you can pick up a used copy on Amazon if you looked.
One of the most valuable sections of the book (for me) is a 20 page chapter about plant diseases and nutrient deficiencies with pix to illustrate every condition. The chapter on cloning alone is worth the price of the book. All of the debates you see here on RIU are handled in the book -- from 18/6 vegging vs. 20/4 vegging, HPS vs. ML bulbs for vegging and/or flowering, auto vs. traditional, dirt growing vs. hydro set-ups, etc.
The book also came in real handy when I decided to make my growing perpetual a few years ago. I learned that my flowering space would need to be 3 to 4 times as large as my vegging space. I learned that short, bushy indicas came closest to just what I wanted to grow. I learned when to water and how much, etc.
Good luck, BigSteve.