Hardcover book are a book with special visual effects. Through special binding and paper technology, flat paper is transformed into 3d works of art. Its features include: unique design, with a high degree of three-dimensionality and visual impact, which can attract readers’ attention; using high-quality paper and craftsmanship, with high definition and color reproduction, able to present details and texture; rich and diverse content, Covering literature, science, art and other fields, it can meet the needs of different readers.