Hippo'S Colour by Numbers (English, Paperback, unknown)

With 24 beautifully drawn pictures to colour in each book, the 5 books in this series aim to develop a child's love for colours into his/her love for systematic colouring by following the number pattern, thereby improving his/her visual and cognitive skills. Using 6 bright and vibrant colours, let your child breathe life into the black and white world of these books.