Price: [price_with_discount] [ad_1] Legal in all 50 states, this entertaining, informative, and whimsically illustrated guide covers 4,000 years of weed and its significance—psychoactive, cultural, medical, sexual, and more—in just 22 pages and with 20 scratch-&-sniff scents. From the science behind the munchies to the botanical link between weed and beer; from weed’s sexual upsides to its (literal) sexual downsides; from…