The advantage of the caterpillar reading pen is its strong English resources, and most of the supporting books are Cadic Prize lists, with high gold content. Moreover, Little Bean has established strategic cooperative relations with many famous foreign children's book publishing institutions, which are suitable for picture books authorized by internationally renowned publishing houses, including Nursery Rhymes of Goose, rainbow rabbit singalong, Cave Book, Hungry Caterpillar Picture Book, Oxford Reading Tree and High Five Magazine. , suitable for English enlightenment. At present, the caterpillar has also adapted many Chinese books, including the book of children's cognitive enlightenment by peek-a-boo, guess who this is, DK's thinking training of children's observation and concentration, I am the best when I grow up, the preparation of interactive games for happy children in the garden, revealing the small world, the three-dimensional popular science book of Chimelong Animal College, the little animal nurse and China.