000 - Computer science, information, general works 710 100 - Philosophy & psychology 180 200 - Religion 61 300 - Social sciences 6.553 400 - Language 161 500 - Natural sciences and mathematics 422 600 - Technology (Applied sciences) 4.083 700 - The arts 22 800 - Literature (Belles-lettres) and rhetoric 154 900 - History & geography 37