This book is very informative on all aspects of cocaine and THC. Gives detailed instructions of synthesis of the two chemicals in a step by step manner. Although I must say the synthesis part is not for everyone, and normal layman, or home chemist, without a solid degree in organic chemistry will be banging their head on the wall trying to figure things out. Other than that the history, medical uses, and origins of cocaine and THC is written in a very easy to understand form. I really like this book and basically ever other book by Otto Snow. This book also isn't to much of clandestine cookbook, but do let me scare you away if your plans were anything like mine :)