| 摘要 |
A sketchbook including inner papers is provided to enable the inner paper to be shown as a picture in a frame and to allow highlight of the drawn picture. A sketchbook comprises: multiple inner papers(1); a coil spring(2) to bundle the inner papers; a cutting line(3) to facilitate separation of each paper; bending parts(1A) with a certain interval, which are formed inside the margin of each paper; and joining parts(1B) formed between the bending parts(1A). The bending parts(1A) and joining parts(1B) form a bending piece on the outside margin of each paper by a bending line. |
