DEVICE, SYSTEM AND METHOD FOR RETRIEVING BOOK

PROBLEM TO BE SOLVED: To provide a device, a system and a method for retrieving book, with which a book can be retrieved from a free idea and viewpoint and can be retrieved even from ambiguous contents. SOLUTION: This device is provided with a data storage means for mutually relatively storing bibliographic data having each of information such as titles, names of authors and names of publishing companies in the prescribed number of books at least, reading data provided by reading the relevant book and image data having the image information of the relevant book, a data input means for inputting prescribed keyword information concerning the book to become a retrieval target, a data extracting means for extracting the book satisfying prescribed conditions from the data storage means on the basis of the keyword information inputted by the data input means, and a data display means for displaying the bibliographic data, reading data and image data of the book extracted by the data extracting means.