What forms of marijuana are covered by Dr. Sircus in his Medical Marijuana ebook?

Dr. Sircus' book on Medical Marijuana is about all forms of medical marijuana and includes the forms that are high in THC, the psychoactive form that most recreational users smoke marijuana for.This CBD is the non-psychoactive form of marijuana and is also covered in his book .Hempseedoil is yet another type of healthful nutritional supplement without CBD and without THC, but has other health benefits. Three different extracts from hemp plants. All are described in the medical marijuana book but are distinctly different. http://publications.imva.info/index.php/e-books/medical-marijuana-ebook.html