In this work the author compiles his own ideas and combines them with other classical ideas that were taken from a series of books mentioned by the author himself in the bibliography section. As other reviews mention, some ideas are smart and some are lame. But surely it must be recognized that this book was the beginning of an entire literature dedicated to getting even and sabotage. Some readers may take it as entertainment to laugh at, but others, whether they are victims of bullies or unscrupulous merchants, may take it more seriously (being careful as most ideas in this book are not legal). It should be said that the work has a second part, and it was also banned in many bookstores in the wake of the USS Iowa turret explosion incident in 1989 (one of the implicated in perpetrating the attack had this book among his possessions).