Know Your Instrument; Protect Your Investment; Sound Your Best. String Letter Publishing. Instruction, Reference. Softcover Video Online. 88 pages. Published by Hal Leonard

Composed by Mark "Kailana" Nelson. For ukulele. Multiple levels. Book. Fretboard Diagram. 60 pages. Published by Mel Bay Publications, Inc

By Robbert van Renesse. For Ukulele (Soprano). Theory & harmony. All Styles. Level: Intermediate. Book. Size 8.5x11. 48 pages. Published by Mel Bay Publications, Inc.