- 21 Songs in 6 Days: Learn Ukulele the Easy Way: Book + online video
- 21 Easy Ukulele Songs For Christmas
- 21 Easy Ukulele Songs for Christmas: Learn Traditional Holiday Classics for Solo Ukelele with Songbook of Sheet Music + Video Access
- 21 Easy Ukulele Hymns (Beginning Ukulele Songs)
- 21 Easy Ukulele Songs for Christmas: Learn Traditional Holiday Classics For Solo Ukelele with Songbook of Sheet Music + Video Access (Beginning Ukulele Songs)