Hi all before you can discuss the best alchemy book a decision needs to be made what path of alchemy you want to work with. By this I mean the acetate path, cinnabar path, or antimony path in western study. My path as of now is the acetate path. On this there are a few books which I would recommend 1- Conserning the Secrets of the Adepts by J. Weidenfeld 2- Clavis Alchemie by S. Norton
3- Bosome Book by G. Ripley 4- Scala Philosophorum by Guido de Montanor.
These would be my recommendations.
Strength & Wisdom
Paul