My Son LOVES the Franny K. Stein Series. They are chapter books and are leveled at ages 7-10. They also happen to have pictures on every page! My son also enjoys pictures and didn't really enjoy chapter books very much because of lack of pictures. (i didn't realize this until I got the Franny books). He reads these books better than the other chapter books he was reading that were at a lower level. He is five and also reads them to my 4 year old who also loves to hear his brother read them.