Collins Big Cat Collins Big Cat is a guided reading series for ages 4-9 edited by Cliff Moon. Top children"s authors and illustrators have created fiction and non-fiction books that your children will love to read, banded to help you choose the right book for every child. Practical teaching notes are included at the back of each book. Watch out, there are monsters about - and they are smaller than you might think! Find out about the world"s small but monstrous creatures in this fantastic non-fiction book.