Tough Tractors tells you everything you want to know about tractors, from the huge to the heavy-lifting. Find out about bulldozers, excavators, combine harvesters, and so much more. Tough Tractors is part of a great new collectible series called It's all about... It is packed with facts and stats, and there are eight amazing collector cards to tear out and keep. You can access a free downloadable audio of Tough Tractors by logging onto the special URL address on page 3.