This Purple Storybook will help children to learn to read using Ruth Miskin's highly effective Superphonics method. There are four levels in the Storybook series - Blue (the easiest), Green, Purple and Turquoise (the hardest). Each level is linked to one of the core Superphonics books. Purple Storybooks practise the sounds taught in Superphonics Book 4. All the Storybooks are fun to read and beautifully designed and illustrated in colour.