Green

Even if you consider yourself a serious stoner, odds are you could learn a thing or two from Green: A Field Guide to Marijuana. Penned by the founder of a cannabis research group, this informative tome is split into two sections. Primer examines the culture of weed and explains the botany behind it, while Buds describes in detail the lineage, flavor, and mental or physical effects of over 170 strains, all accompanied by detailed photography of individual buds shot by the founder of marijuana photo blog nugshots.com. No, really.