May 22 2012 GarageBand for iPad Hands-on: Why It’s Ideal for Beginners, What You May Not Know by Peter Kirn
Apr 14 2011 Game Meets Album: Behind the Music and Design of the iPad Indie Blockbuster Swords & Sworcery by Peter Kirn
Oct 20 2010 GarageBand ’11: More Lessons, Time Features from Logic, Friendly to Newcomers by Peter Kirn