Our friend Bill Gurstelle is dropping an updated version of Backyard Ballistics, one of his trademark flingin’ books and one of his earlier works that made his name as the go-to man for catapulting and exploding.

This bestselling guide has been expanded and updated, enabling ordinary folks to construct even more exciting ballistic devices in their garage or basement workshops than ever before. Same clear instructions, diagrams and photographs show how to build all the favorites – the spud gun, the Cincinnati Fire Kite, and the catapult – plus new ones. New projects include the Sublimator, the EM Pipe Gun, and the Powder Keg. Bigger and better than ever!

The book drops September 1st.