This is the revised edition of an illustrated textbook which has been used successfully in training media teachers/school librarians, and also in orienting all teachers to the organisation and retrieval of books and other media in the school media centre. Part 1 provides a simplified explanation of the basic theory of cataloguing and classification. Part 2 is a manual for students and teachers who want to learn how to catalogue and classify print and non-print media. There are practical exercises and answers for classification, original and copy cataloguing.