An entertaining description of the science of robotry and the criteria that divide robot-like devices from other machinery. The lowly mousetrap, the reader will discover, is a robot because it possesses a sensor, a computer with a definite action and an ability for self-operation. The thermostat and common traffic signal fall into this category as well, along with complex digital computers, gyroscopes and space rockets. Weaving aspects of science fiction and reality together, this mentions classic stories of robotry, K.U.R. and the Frankenstein legend and tells of a real robot fox and dog who can play a complicated game of cards. The limitations of these machines are discussed too, insuring one of the unlikelihood of a robot-dominated world.