The Usborne Reading Programme is a collection of over 300 reading books, graded in seven levels and covering a wide range of subjects, both fiction and non-fiction. First Reading covers the first four levels, and Young Reading the next three.Series 1: These titles are for children who have just started reading on their own. They are 48 pages long and typically contain several short stories or one longer story divided into chapters. They use fairly short, simple sentences and everyday vocabulary.Series 2: These titles are for children who are reading more confidently. They are 64 pages long and use varied sentence lengths, more complex sentence structure and more challenging vocabulary.Series 3: These titles are for fully confident readers who still need to gain the stamina needed for standard length books. They use advanced sentence structure and vocabulary and have more complex plots with subplots.