Beyond Buds, Next Generation, helps readers understand cannabis extraction, processing, and use. An official course book at Oaksterdam University will help you take your extracts to the next level.

Ed Rosenthal is a leading cannabis horticulture authority, author, educator, social activist, and legalization pioneer. One of the co-founders of High Times Magazine, Ed writes the much loved and long-running cannabis column, ‚ÄúAsk Ed.‚Äù The column continues to be published internationally. 
“Ed Rosenthal’s Marijuana Grower’s Handbook”, has become the definitive marijuana cultivation resource, inspiring millions to learn the best marijuana cultivation techniques. His book is the official course book of Oaksterdam University.