George Gruhn is a writer and businessman. He is an expert on vintage American guitars and related instruments. He opened Gruhn Guitars in Nashville, Tennessee, in 1970 and has sold guitars to musicians such as Eric Clapton, Lyle Lovett, Emmylou Harris, Billy Gibbons, Rick Nielsen, Vince Gill, John Hiatt, and Hank Williams, Jr. Vintage Guitar magazine described his store as a "landmark," and a mecca "for fans of collectible electric and acoustic guitars." He is also the author of several books on the subject.
Gruhn has written articles for The Music Trades magazine and other periodicals. He has also published instrument guides with Walter Carter.
- (2010) Gruhn’s guide to vintage guitars: An identification guide for American fretted instruments (3rd ed.). New York: Backbeat Books. (with Walter Carter)
- (1997) Electric guitars and basses: A photographic history. San Francisco: GPI Books. (with Walter Carter)
- (1997) Acoustic guitars and other fretted instruments: A photographic history. San Francisco: GPI Books. (with Walter Carter)