... to buy customized funny books for kids softcover children book printing from its factory.Artwork FormatPDF,AI,CDR,JPGMaterialArt Paper, Craft ... hardback and paperback publications, such as softcover book, hardcover book, notebook, bible, Children's book,box,paper bags,calendar and so on. ... time, we can fully show the contents of the book when the book open, from a book binding method to automatically.