Books

Backyard Ballistics Backyard Ballistics
2012
Absinthe & Flamethrowers Absinthe & Flamethrowers
2009
Defending Your Castle Defending Your Castle
2014
The Art of the Catapult The Art of the Catapult
2004
Adventures from the Technology Underground Adventures from the Technology Underground
2006
Whoosh Boom Splat Whoosh Boom Splat
2007

Audiobooks