It is easy to find books that will only give you 'crystal prescriptions' (where they tell you the properties of the crystals but not much more than that). Although I understand that those books can be helpful to a lot of people, it may not be so empowering when you are just told what a crystal does instead of learning from experience.
Also, to be an effective crystal healer it is necessary to work with crystals hands on! This way you can get your own impressions of them, understand them better, attune to them, and instill a stronger bond of communication.
Why is this necessary?
Because everyone is different. As such, crystals can work with people differently depending on their astrological chart, past experiences, where they are at in their life right now, and much much more. The greater connection you have with a crystal the more effectively you will be able to work with it in a crystal healing session.
Watch the following video for more details!
1. The Complete Illustrated Guide to Crystal Healing by Simon Lilly
2. The Book of Stones by Robert Simmons and Naisha Ahsian
3. The Crystal Experience by Judy Hall
Crystal Joy to you!!