How did untidy doctor change the world? who really invented the radio? And what on earth inspired engineers to try to build a space rocket? Lift the flaps to discover the amazing stories behind some of the world's most ground-breaking inventions.
Want to know what spies do? This book can tell you. In a famous spy trial at the Old Bailey in September 1993, Soviet spy Oleg Gordievsky agreed that an Usborne spy book, the KnowHow book of spycraft, gave away the KGB's tricks of the trade. The case made national headlines.