Step 4 contains two stories that build on the phonics learnt in previous steps and focus on the sound and letter combinations: e, u, r, h, b, f, ff, l, ll, ss. Read it yourself with Ladybird is one of Ladybird's best-selling reading series. For over thirty-five years it has helped young children who are learning to read develop and improve their reading skills. Each Read it yourself book is very carefully written to include many key, high-frequency words that are vital for learning to read, as well as a limited number of story words that are introduced and practised throughout. Simple sentences and frequently repeated words help to build the confidence of beginner readers and the different levels of books support children all the way from very first reading practice through to independent, fluent reading.