| Every year, publishing companies publish a revised edition of the statute book related to education. This updated statute corresponds to changes in the field of education because of revisions of educational laws in sequence. Recently, educational institutions have been required to learn diverse laws even though such laws donft directly relate to education, such as the Copyright Law. As a result, the volume of statute books has been increasing yearly. There is an indication that deregulation has helped to cause such increases in the revisions in laws.