Randy Mosher is a writer, lecturer, and creative consultant on beer and brewing worldwide. He is the author of Tasting Beer, Beer For All Seasons, Radical Brewing, and Mastering Homebrew. He is active in the leadership of the Chicago Beer Society, the American Homebrewers Association, and the Brewers Association. He is also a partner in and the creative director for 5 Rabbit Cerveceria, a brewery in Bedford Park, Illinois. He lives in Chicago, Illinois.