Published by DK Publishers, this book is typical of all that they publish in that there are many bright high quality photographs and lots of tidbits of factual information on the topic. Each book focuses on one topic, they have a series of books. This one focuses on massive trucks and machines such as tractor trailer trucks, cement mixers, etc. My boys loved this book especially when they were toddlers and very young. DK gives so much information that even I learned a lot about these trucks!