This book is an excellent resource for anyone interested in identifying crystals. Written by Peter Darling, it provides a comprehensive guide to the topic. The paperback format makes it easy to carry around and use on the go. The book covers a range of crystals, providing detailed information on each one. It is perfect for beginners and experts alike, and is sure to be a valuable addition to anyone's library. With its easy-to-use format and comprehensive information, this book is a must-have for anyone interested in identifying crystals.