The history of the tractor is one of rapid development, from the turn of the 20th century when it was a substitute for the horse, to today's sophisticated machines which boast a range of technologically advanced equipment. This fact-packed encyclopedia charts this exceptional history, the machines and their manufacturers. Each vehicle is illustrated with archive material or photography, together with specification boxes detailing engine capacity, power, transmission and weight. Including an international overview of farm machinery around the world, the volume forms a highly comprehensive tractor encyclopedia that all enthusiasts will want to own. The ultimate book for every tractor and agricultural machinery enthusiast, this is a detailed portrait in words and pictures of farm vehicles and their evolution. Covering every aspect of the tractor and its components, from the history of the inventors, innovators and factories, to the vehicles' engine capacities and power, the glorious images feature original machines, vintage models restored to their former glory, together with their modern-day high-tech equivalents.