To provide a book with an IC tag which facilitates its management in a bookshelf without the possibilities of damaging the book during its bookbinding or circulating and can be practically used from a viewpoint of price.

This book with an IC tag is such a book B that has a book marker string 9 attached to the spine binding part of the book and that a thin string-like IC tag or inlet 10 is attached halfway through the book marker string 9. Since the book marker string 9 with the IC tag or inlet 10 attached to it has only to be used, the bookbinding process which is quite the same as conventionally used can be adopted for any kind of the book provided that it has the book marker string 9. In addition, the book marker string 9 is inserted between the pages of the book, such an accident does not happen that the IC tag or inlet may be broken in a process following a spinning work or damaged in a circulation process and thus the high reliability of the IC tag is ensured. Further, as the mass-produced low-cost IC tag or inlet 10 has only to be attached along the book marker string 9, its practical use is possible from a viewpoint of cost.