For millennia, spices have been used to flavor food and heal the human body. Although we tend to buy them, Tasha Greer points out that many spices can be easily grown even by people who don't have a green thumb. For dozens of herbs both familiar and exotic, Greer provides color photos and information on their care, harvesting, history, and medicinal uses. She also shares lore and side notes: Sanskrit has 53 different names for turmeric, cinnamon is actually an invasive weed, and Napoleon recommended chicory root to help coffee drinkers kick the habit.