GREG A. MARLEY, in addition to being a popular speaker on the subject of edible mushrooms, publishes an Internet newsletter called Coastal Maine Mushrooming. He is the proprietor of Mushrooms for Health. He's been studying mushrooms for more than 30 years. He has a B.S. degree in Botany with a minor in Chemistry and a focus on plant taxonomy and ecology, and is a consultant for the Northern New England Poison Control Center and various hospital emergency rooms. He also cultivates edible and medicinal mushrooms and provides wild edible mushrooms to professional chefs.

He lives in Rockland, Maine.