Cunningham's Encyclopedia of Magical Herbs
The standard reference on the magical uses of over 400 herbs — a book most working witches end up owning eventually. Organized for easy lookup by herb and by intention, so it works for quick reference or deep study. The kind of book that earns its shelf space.
Witch Tip: Before buying herbs online, check the entry first — Cunningham often names a common kitchen substitute that does the same job.