YouTuber Colin Furze is on a mission to inspire a new generation of budding inventors to be creative and make things! This Book Isn't Safe! contains ten awesome inventions for girls, boys and parents everywhere to make at home with a basic tool kit. Ever wondered how to make concrete shoes? Or how to build your own downhill trike? Or how to tidy your room in three seconds using a lever? These are just some of the inventions Colin has made especially for his debut book. With over five million YouTube subscribers already hooked to his inventions channel, This Book Isn't Safe! will also give fans a unique behind-the-scenes look at Colin and all his greatest inventions such as the homemade hoverbike, a Star Wars AT-AT and the world's fastest toilet, to name but a few, and give you exclusive secrets and tips from his bunker and shed.