I am a Kindergarten teacher in Connecticut, and have been using this book for many years. I have the Big Book, a regular-size Paperback version, and four small hardcover ones that I use with an original tape of Bill Martin reading the story. These books are much loved, and I decided to replenish my library with new ones, only to discover that for some reason known only to himself, Bill Martin decided to change the format. In the original version, the pictures helped give clues to the words, which emergent readers need: i.e "Brown bear, brown bear What do you see?" was on the page with the picture of the brown bear. The words "I see a red bird looking at me." and then "Red bird, red bird, what do you see?" were on the page with the picture of the red bird. In this newer, revised version, the page that contains part of the picture of the brown bear has "I see a red bird looking at me." on it. When you turn to the next page, with the picture of the red bird, you see the words, "Red bird, red bird, what do you see?" but then, on the same page you get the words "I see a yellow duck looking at me." No picture clue given. I don't like this version, and it's now impossible for me to obtain a copy of the original version. I think they must be out of print. So I'm holding on to mine for dear life! They're worth their weight in gold!