There are many crystal books out there and like most people I have my favorites. Here are some Crystal Healing book that I recommend:
Great for Beginners:
1. The Crystal Bible: Volume 1 by Judy Hall
2. Crystal Healing by Judy Hall
3. The Book of Stones, Revised Edition: Who They Are and What They Teach by Robert Simmons and Naisha Ahsian
Other Books that I love and have in my collection:
1. The Pocket Book of Stones, Revised Edition: Who They Are and What They Teach by Robert Simmons (small - fits in a purse which is great when you are going to a store to look for crystals)
2. Encyclopedia of Crystals, Revised and Expanded by Judy Hall
4. Love Is in the Earth - the Crystal and Mineral Encyclopedia - the LIITE Fantastic and the Last Testament: The Encyclopedia Describing the Metaphysical and Mineralogical Properties of the Mineral Kingdom by Melody - (this is a very large book that I would suggest as a reference tool - however there are no pictures of the stones)
There are many others but these are a few of my top favorites