About Juan Wijngaard JUAN WIJNGAARD worked as a children’s book illustrator after graduating from the Royal College of Art in London. He won the Kate Greenaway Medal for Sir Gawain and the Loathly Lady. Books by Juan Wijngaard Alligator Pie and Other Poems A Dennis Lee Treasury by (author) Dennis Lee & Juan Wijngaard illustrated by Frank Newfeld & David McPhail Ages 0 to 2 Grades p to k Jelly Belly by (author) Dennis Lee illustrated by Juan Wijngaard