Book excerpt: Know Your Farm Machinery follows on from the successful publication of Know Your Tractors, Know Your Combines and Know Your Classic Tractors.This pocket-sized book details 43 types of farm machinery most commonly seen on farms today including ploughs, cultivators, drills, spreaders and balers. A photograph of each machine is included.Chris Lockwood is a Suffolk based freelance agricultural journalist and producer of a long list of farming and farm machinery DVDs. This is his fourth book in the popular Know Your series.