Learn English Books,English Sound Book,English Educational Books Product Description Common Book Inf.Book TypeBook SizeMaterial16K Hardcover Book(1)260*185mmCover:200g-300g glossy paper or matt paper Inner:80g,105g,128g,157g,200g,250g art paper or matt paper ,etc.16K Hardcover Book(2)297*210mm32K Hardcover Book(1)184*130mm32K Hardcover..