The present invention and can be a database of information processed by the network, is for the convenience's return borrowing. The present invention for this purpose is, with the front case 100 having an inlet 105, and the inside of the case 100, a feeder unit for feeding the book is introduced into the inlet 105, the inside of the case 100 and reading the bar code information of the books carried by the feeder section bar code reader 308, a plurality of books carriage box 107 to be the transfer books by the feeder unit contains and is provided on the inside of the case 100, the feeder unit and a book recovery device made of a personal computer which controls the bar code reader 308, a is available and, books recovery device database processing on the information to return a book to return self book by connecting the personal computer to the main computer with a manager there is an effect that can be achieved by placing the user's convenience to the beach close to the place in the book return characters.