Cannabis A Guide to Common and Exotic Strains provides a look at 80 cannabis strains and how to identify them based on look and aroma. From testing data from dispensaries and growers we are able to provide THC ranges and CBD percentages when available. Included in this guide is also general information on how each of the strains may help those who use them based on the lineage and strain type. It may never be possible to have a complete guide since cannabis breeders are adding new and exciting strains daily. This pocket-friendly guide is a great introduction to this versatile plant.