The present invention relates to a book being used for thinking idea, memorizing and studying, comprising a plurality of basic papers having an axis hole with an axis therein and interconnected to form a book; an axis placed at the lower side of a basic paper to be used to penetrate the axis hole; and a disk paper having the axis penetrating a spin hole formed in the middle thereof to be able to rotate around the axis and mounted on the basic paper to be used. The present invention enables a user to think idea or memorize by combining language information such as keywords, phrases and sentences, and image information such as figures, pictures and photos on the disc paper while rotating the disc paper on the basic paper.
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