This set of books is a phonetic learning book for kindergarten and first grade children. There are six books in total, covering five themes of finals, initials, complex finals, overall recognition of syllables, and spelling. Each topic is divided into three stages of learning: basic, advanced and expanded. The basic stage is mainly the reading and writing of pinyin letters and syllables; the advanced stage is mainly the spelling exercises, according to the advanced system of the course, the transition from basic words to phrases and sentences spelling exercises; the expansion stage is mainly related to phonetic enlightenment He elementary school must memorize the accumulation of ancient poems. At the end of each book, a corresponding comprehensive testing training is arranged to sort out and practice the important and difficult points of the entire book. This set of books is dedicated to learning, practicing, and reviewing to consolidate the trinity of learning mode, with interesting illustrations, nursery rhymes and small games to make children's learning more interesting and effective.