Product: • 100% new book • 100% physical book • All products are new, we do not sell used products • The quality of the book is good, not defective, and matches the picture • Hvs/white paper • Size B5 • Softcover • Hardcover • Black AND WHITE CONTENTS • Full Color Cover • If the product catalog is not available, please chat Packaging: • Products are packaged in the afternoon The essence of a book is the science in it😊 Item price includes shipping fee that should be borne by the buyer.