Over the past 20 years, Michael Mueller has authored over 20 instructional guitar books, with over 400,000 units sold. Titles include the #1 New Releases How to Play Bass Guitar in 14 Days, How to Play Ukulele in 14 Days, as well as Christmas songbooks for ukulele and bass guitar. In addition, Michael has written the Hal Leonard Rock Guitar Method, Acoustic Guitar Tab Method, and Scale-Chord Relationships.

He has also edited countless others, including the top-selling Guitar Aerobics (Troy Nelson) and Ukulele Aerobics (Chad Johnson) titles. Additionally, he has served as the Editor at top guitar magazines Guitar One and Guitar Edge, and he’s contributed to Guitar World, Jazz Times, and Sirius XM, among others.