Although this is a good book, which I can recommend, it contains some erroneous references in the pyrotechnics section. The (late) author repeatedly and incorrectly refers to the act of setting any device off as 'detonating', where many of the explosives he is talking about 'deflagrate', which is an entirely different phenomenon. Sorry to get technical, but you would expect a book that gets technical with the effects would get it right. It is also said that normal pyrotechic based fuse can be initiated with a blasting machine, which is also nonsense.