- E-bookGetting Started with Raspberry PiRichard Wentk
- E-bookRaspberry Pi For Kids For DummiesRichard Wentk
- E-bookiPhone OS DevelopmentRichard Wentk
- E-bookXcode 5 Developer ReferenceRichard Wentk
- E-bookXcode 4Richard Wentk
- E-bookSerie: Teach Yourself VISUALLY (Tech)Paul McFedries
- E-bookiOS App Development Portable GeniusRichard Wentk
- E-bookSerie: Visual BlueprintRichard Wentk
- E-bookSerie: Portable GeniusRichard Wentk