A textbook of information sources and services / Tariq Ashraf and Shehbaz Husain Naqvi.

"Information has emerged as one of the most important resources in recent years. Information is required for every decision making process and is contained in a variety of sources. With subjects increasingly becoming interdisciplinary and complex, the users now needs pinpointed and exhaustive information for answering their quries. Accordingly Library professionals need to develop a strong and fair knowledge of information sources and their usage, Modern libraries house not only the traditional materials like books and periodicals but information / reference sources in muliple forms like online databases or financial and statistical information sources. The application of computers in library and information centres has also revolutionised the concept of reference service. It has made it possible to manage and provide information from online databases on different subjects instantly . These databases can be accessed by the user globally through the internet. Though with the advent of internet, most of the information is accessible from online sources, still host of information sources are confined to print formats. For a student of Library & Information Science, it is important to grasp the importance, role and different categories of information sources so that effective information services may be provided to library users. Following a text-book format, this book deals with various types and catagories of information sources such as documentary, non-documentary sources, print and non-print."--