#2 One of my favorites

Penelope Ody's Complete Medicinal Herbal is a great reference book with lots of info, history and lore about herbs, how to prepare herbal remedies and much more.  It's one of my favorites and I use it quite often.  She shares lots of practical applications in various forms of preparation for each herb listed, as well as which parts of the plant to use for each remedy and the best time to gather them.