Crash! Scrape! Scrunch! A new park is being built. See Big Machines in action and find out what they do. For children who are just beginning to read and who have a limited vocabulary. Big Machines is part of the DK Readers series, a multi-level learning-to-read program that combines DK's highly visual style with appealing stories at four graduated levels. Stunning photographs and engaging, age-appropriate stories are guaranteed to capture a child's interest while developing reading skills and general knowledge. Paperback, 6x9". 32 pages. Level 1. Ages 5-7.