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Ed Rosenthal, “The Guru of Ganja,” is a leading cannabis horticulture authority, author, educator, social activist and legalization pioneer. As one of the co-founders of High Times Magazine, Ed writes the much loved and long-running cannabis column, “Ask Ed,” which continues to be published internationally.

Ed Rosenthal’s Cannabis Grower’s Handbook, has become the definitive marijuana cultivation resource, inspiring millions to learn the best marijuana cultivation techniques. According to a 1978 review of Ed’s Marijuana Growers Guide in the The New York Times – “After legalization, elementary botany classes could use this guide as a casebook for learning about a common plant.”
A marijuana innovator, Ed, is the founder of many successful socially responsible cannabis organizations, including; Quick Trading Publishing, focused on researching and publishing the most accurate, up to date cannabis education, Quantum 9, a marijuana consulting and technology company, Green Aid: The Medical Marijuana Legal Defense and Education Fund, the International Cannabis Business Conference, and The Hash Marihuana & Hemp Museum in Amsterdam.

As an internationally known cannabis activist and advocate, Ed views marijuana law as a crucial social issue: one that hit him personally. In 1999, Ed was appointed, “Officer of the City of Oakland,” directed to cultivate cannabis for patients. Three years later, the federal government shut down his city supported facility. Ed was arrested and put on trial twice for marijuana cultivation in federal court. Ed’s highly publicized trials shifted public opinion in favor of state medical marijuana laws, highlighting for many the fact that marijuana laws have become more harmful to society than the behavior they were intended to regulate. “Ed Rosenthal has always been an out-front marijuana legalization advocate, someone willing to push the envelope, often at some personal risk, to achieve social change.” – Keith Stroup; Founder, NORML