Randy Mosher is a nationally-recognized author and expert in the field of beer and brewing. He writes for virtually all the national beer and brewing-related periodicals, has lectured to audiences across the country, and has taught beer style courses at the Siebel Institute.

He is active in the leadership of Chicago Beer Society, the American Homebrewers Association, and the Association of Brewers. His interests in beer and brewing memorabilia combined with his experience as a branding and packaging designer specializing in beer and food have given him the tools to visually express the richness and exuberance of beer and brewing traditions in Radical Brewing.

He is also the author of The Brewer's Companion (Alephenalia, Seattle, WA, Revised Second Edition, 1995), a brewer's reference and recipe planning guide.

Randy Mosher lives in Chicago with his wife Nancy.