I have done a comparative gender study of Library of Congress Classification from 1900 and 2001. I have also used a hermeneutic method and ideological critics to find out what picture of women the both systems shows. In my comparative study of the both systems I have found low update of classes which relates to women in the new classification system. Men seem to be a norm in the system, because men are not defined in classes related to both men and women. But many classes related to women are named Women as and Women in The study also shows that women are more related to subjects about family and marriage than men are. In classes for work and studies women are defined as another society group than the norm, the man. The old system from 1900 follows the historical context from the time of 1900. The new system follows a gender hierarchy where the man has the dominated role, according to Yvonne Hirdmans theory about the gender system.