My grandson who is 4 years old was with me in the waiting room of a doctors office looking at a childrens book about tractors, he has been talking about this book for 2 days now I would love to buy him this book but the only thing he can tell me about it is that is had a black cover with a green tractor on it. I have shown him many pictures but he does not recoginize any, I would greatly appreciate any help I can get. Thank You