According to age, there are juvenile enlightenment, children's literature and art, and teenagers. Children's books should stand reading. Therefore, we should also pay great attention to the quality of binding. Of course, paperbacks are more suitable for home use and cheaper.
The books suitable for babies to read before entering school are mainly "picture books", which are often publicized in the market. This kind of books express stories in the form of a lot of pictures and a little text, or even no text, which is very popular among children and even adults.
Definition:
UNESCO's definition of a book: all printed materials with more than 49 pages published by a publishing house (enterprise), excluding the front cover and back cover, have a specific title and author's name, and have an international standard book number. A publication that is priced and protected by copyright is called a book.
Books are works recorded on certain forms of materials with words or other information symbols for the purpose of spreading culture. Books are the product of human thoughts, and they are a specific and developing tool for knowledge dissemination.