All the information in this book is either bogus or suitable only for puerile kiddie games for the weird types who like to sit around and play like make-believe revolutionaries. None of the instructions are adequate to make the infernal devices described (blasting caps, pipe bombs, grenade launchers, Claymore mines, rocket launchers) and most require access to conventional explosives (from unspecified sources). There are no discussions about how to prepare actual explosive mixtures (any 19th century handbook or innumerable Websites will give much, much more reliable information), and the one explosives recipe (for "plastic explosives") is a joke and would not work (although grinding potassium chlorate crystals into a fine powder as recommended could cause autodetonation and serious injury to the would-be bomb-maker.....).This short (64 pp) book is poorly printed and full of typos. I deeply regret having wasted my (money) on it.