Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Encyclopedia of Magickal Ingredients

This book is not only useful for any occasion, it is easy to read, which, in many cases, makes all the difference in the world.A comprehensive encyclopedia of pretty much anything that can be used in magick (which is literally just about anything), including several 'keys' or 'tables' at the back that list together things with similar properties. I've used this book countless times (and, actually, just the other day) for enhancing my spellwork. Excellent book.