The Very Hungry Caterpillar has been described as one of the greatest childhood classics of all time and is a children's picture book designed, illustrated and written by Eric Carle. The book follows a caterpillar as it eats its way through a wide variety of foodstuffs before pupating and emerging as a butterfly. It features distinctive collage illustrations and 'eaten' holes in the pages and simple text with educational themes - counting, the days of the week, foods, and a butterfly's life stages. Rainbow Designs has created a range of products, including educational tools, in connection to the book that children will adore.