TY - BOOK AU - Dr.Seuss TI - Hop on pop SN - 9780007158492 U1 - F/ 20 PY - 2003/// CY - London PB - Harper Collins Children's Books N1 - This charming book introduces young children to words that rhyme, such as Hop and Pop, Cup and Pup, Mouse and House, Tall and Small. And once they have learned to recognize one word, children soon find to their delight they can read another simply by changing the first letter ER -