I picked up this gorgeous children's book at the weekend - Smells I Like by Gordon Stowell. The illustrations are fantastic. I think they're paper and line drawing collages which gives them their bold, brightness and wonderful simplicity.
Illustrator and cartoonist Gordon Stowell sadly died in 2003. He sold his first cartoon to a newspaper in 1942 aged only 14. Throughout his very long career he wrote and illustrated many children's books (including the one above published by AR Mowbray & Co Ltd. in 1969) and had his cartoons published regularly in the likes of Private Eye and Punch magazines - he believed, "cartoons could put over serious subjects".
There are 8 more books in this range, so the search is on - not sure how many of them I'll be able to pick up for 20p though!