This little paperback is an excellent introduction to the making of your own firecrackers. Divided into a dozen or so chapters, each dealing with a different kind of cracker from a particular country or period in time, the descriptions of how to assemble the devices are extremely lucid with simple, well-drawn diagrams. The book only covers firecrackers, though, so if you're looking for a more general introduction to the multitude of different pyrotechnic devices that exist, this probably isn't your best bet. If indeed it's crackers specifically you want to know about, or if you're just starting out with pyrotechny and want to experiment with a few very simple, satisfying fireworks, this is an excellent read.