This book has a great variety of truck and heavy equipment pictures. My 19 month old loves it. He will lay on his tummy and look through it because the big pages are easy for him to turn. Someone else mentioned that a few of the pictures were mis-named, which I've found to be true with several of the Roger Priddy books. I've also found they don't consistently use the same name for the same piece of equipment from book-to-book, but it's hard to beat the pictures. Since it's really a picture book with a name under each picture rather than a book with a story you would sit and read, I still recommend it for anyone with kids who are fascinated by trucks and machinery. You can always just say the correct name of the equipment rather than what is printed under the picture.