1. Professional Children book printing 2. Friendly material for the book 3. No harm for Children's reading 4. Nice color Children's book: Size&Design According to customers’ specific requirement Material Cover: Glossy art paper, Matt art paper, C1S, C2S, Offset paper, special paper, cloth, Leather…Text: Wood free paper, offset paper, coated paper, special paper, matt art paper…End Paper: Wood ...