Ed Rosenthal is widely regarded as the world's leading expert on cannabis cultivation. An innovator and educator, he is known for developing easy, effective gardening techniques that have helped countless growers succeed, earning him the moniker the ?Guru of Ganja? from High Times magazine. He is also recognized as a pioneer and advocate for the right to grow cannabis legally, and as a leading voice challenging federal intervention in state cannabis policy. Rosenthal's 2003 federal trial played a pivotal role in shifting public opinion toward the approval of medical marijuana laws. A prolific author, his books have sold well over one million copies worldwide. His most comprehensive grow book is Cannabis Grower's Handbook, and his other best-selling titles include The Big Book of Buds series, Marijuana Garden Saver, and Beyond Buds. He is based in Oakland, California.