THE BOOK OF CRYSTAL BOOKS is exactly what it says on the cover: a straightforward collection of spells, rituals, and associations related to crystals, stones, and the like. The author assumes that the reader already has a good grasp on mainstream witchcraft, but none of the material within is particularly difficult to follow. The organization of the text is top-notch, and the instructions waste no time in getting to the point. The more complicated aspects of rocks and minerals are explained very well, and the author's personal anecdotes never feel out of place or go on too long. Incorporating crystal magic into every level of everyday life is the clear goal of the book, and in that regard, it succeeds admirably.
The only serious criticism to be made is that it often tells the reader to "remember" or "keep in mind" something that either a) isn't explained for another 20-30 pages, or b) is never touched on again, period. The author also jumps to conclusions without explaining their logic, which can be bewildering for beginners or annoying to experienced practitioners with different viewpoints. These are only minor problems at the end of the day, but they did appear very frequently. For witches concerned about Llewellyn's reputation for cultural appropriation, it should also be noted that chakras and totems are incorporated into a small handful of spells.
All in all, THE BOOK OF CRYSTAL SPELLS is a handy reference book for almost any mainstream witch. Highly recommended to anyone who finds themselves lacking in the earth department.