Mammoth Book of Dinosaurs

We purchased this book for our three year old son. He loves the pictures in the book. He carries it around with him from morning thru bedtime and when he goes to sleep he takes it to bed and sleeps with it right next to him. He loves dinosaurs and knows many of the names of them. Thru this book he has learned not only more dinosaur names but specific information about the dinosaurs in this book. Though some of the text is a little advanced for him and there are certain parts my husband and I change when we read it, we still read this as his bedtime book at night. My two year old son is starting to become interested also. I thought my sons would never be interested in reading. They really are now, we just needed to find the right subject. They are very interested in dinosaurs.