Would you like to know more about medical marijuana? Do you question the accuracy of information you were given about cannabis strains? Do you wonder which strains are highest in THC? Book of Strains answers these questions and more. Book of Strains is for you if you want to know: -- How to pick the marijuana strains that work for you. -- What the average THC content is in the 50 most common strains. -- Whether a strain is pure Indica or Sativa or a percentage of each. -- The strains that were crossed to produce each strain. -- How easy a strain is to grow. -- What states allow medical marijuana. -- What ailments each state has approved for MMj. -- Where you can get your medical marijuana tested for cannabinoid content. You can see more sample pages at this URL: http: //professorgrow.com/wp-content/uploads/Sample_Pages_from_Book_of_Strains.pdf