Book excerpt: When you're "out in the field" scouting for John Deere tractors, don't forget to take along The Field Guide to John Deere Tractors: 1892-1991—the first-ever, full-color pocket guidebook to these popular tractors, now available in paperback format! This convenient, easy-to-use field guide puts a wealth of information right into your hands! You'll find brief histories, model runs, specification details, and eye-catching color photographs of more than 500 models of John Deere tractors, from the two-cylinder series of 1892 to modern multi-cylinder models. The late Don Macmillan is considered one of the world's most respected John Deere historians. Inside, he breaks down John Deere's rich heritage into distinct eras: The Pioneering Years, 1892–1924 The Unstyled Years, 1923–1938 The Styled Years, 1938–1960 The Numbered Series, 1952–1960 The New Generation of Power, 1959–1972 Generation II, 1972–1987 The Modern Years, 1982–1991 A wealth of photos of every John Deere tractor—from the legendary two-cylinder Waterloo Boy that started it all to six-cylinder, 200-horsepower machines of the 1980s—are accompanied by detail-rich descriptions of the tractors' features and back stories, as well as concise charts presenting key specifications. For fans of old iron, there's no better quick reference that's equally useful at swap meets and in the armchair.