| 摘要 |
PROBLEM TO BE SOLVED: To provide a book capable of giving an unusual strong impact to a customer of watching a folded mounting sheet piece with absorbed interest by bringing about an interest of how the sheet piece is spread when the book is opened. SOLUTION: The book 1 comprises at least one piece of mounting sheet piece 2 and another mounting sheet piece 2 connected to the previous piece 2 through a first connecting portion in a structure openable and closable at the first portion as a center in such a manner that at least one of the pieces 2 has a plurality of angle folding lines and a plurality of valley folding lines, becomes substantially the same in size as another mounting sheet piece when folded, a rectangular portion is exposed on a front surface, and a square shape rotated at 45 degrees to the lines of the first portion is exposed at a center of the rear surface. An area ratio of one piece 2 to the other piece 2 connected to it through the first portion is substantially 1:4.7. Further, the book provides a character, a symbol, a picture or the like for displaying pulling on a folded lower right portion of the latter piece 2 connected to the former piece 2 through the first portion, or the book attached to a book such as a magazine or the like.
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