Felt and leather are materials with great texture. When used as a book cover, it is much better than ordinary fabrics. Cloth as a cover, need to be processed into a binding fabric, and then pack the gray board to ensure the hardness. Both the felt and the leather are strong and soft, and there are no troubles with seaming. Cut one whole piece directly, and then stitch the inner pages one by one. Two kinds of materials as a book cover, also in his hand is also feel well.