This is a collection of pyrotechnic safety essays written by Ofca for American Fireworks News over a period of ten years. Useful for experimenters and professionals alike, Bill's book's discussions on safety touch on all the important issues of making, handling, and shooting display fireworks. Includes bonus essay on how to make a beautiful golden spider web shell. 8-1/2 x 11 inches, 90 pages. Shipping weight 2 lbs.