The Dewey Decimal classification (DDC) system is the world''s most widely used library classification system. Then 22nd edition of the DDC enhances the efficiency and accuracy of your classification work in way no previous editions have done. The DDC evolves continually. to keep up with recorded knowledge. The Dewey Decimal classification work in ways no previous editions have done. The Dewey Decimal Classification (DDC) system uses simple decimal notation to divide recorded knowledge into 10 main classes, 100 divisions and 1,000 sections. DDC 22 Summaries provides a complete list of these groupings. Browsing the summaries is fast and easy way to become familiar with the DDC''s structure. It also uses some aspects of a faceted classification scheme combining elements from different parts of the structure to construct a number representing the subjects content (often combining two subject elements with linking numbers and geographical and temporal elements and form of an item rather than drawing upon a list containing each class and its meaning. Although the scheme is one of the major internationally recognized classification systems, yet there is hardly a book on the subject that may highlight special features of the successive editions of DDC. The present book is primary aimed to fill up that void.