Books are arranged on the shelves according to Dewey Decimal Classification (DDC). Each book is assigned a call number which consists of class number and book number. Class number is assigned to a book according to its subject content using classification schemes. Book number is individualizes a book among others having the same numbers. This type of arrangement will help to keep the books on the same subject together with those on related subjects coming next to them. Open access facility is provided in the library to help the reader browsing the stack and selecting the books of his choice.