Authored by Prof. Dr. Ribhi Mustafa Aliyan, this comprehensive 2013 book explores the critical field of developing information sources. It provides a detailed framework for librarians, archivists, and information specialists on building and managing both traditional print collections and modern electronic resources. The text covers essential topics such as selection criteria, acquisition policies, preservation techniques, and the strategic integration of digital databases and e-books into library systems, addressing the challenges and opportunities of the digital age in information management.