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Academic libraries are considered a confidence centre of educational establishments and their Services assist numerous academic programs, including teaching and research. In academic libraries, the application of the latest technology, particularly internet technology, has transformed traditional methods of providing library and information services. Introducing novel information via a variety of channels requires an extra need for information and a library system to include the latest users. As users of technology became more demanding, libraries grew or invented new services. Information methods and techniques are constantly being developed by the internet for libraries to use to provide their services. Some research achieved one-of-a-kind elements of the sector that have underlined the significance and relevance of libraries in the modern world. The modern library is characterized by a networked, automatic environment in which each operation is performed with the assistance of one or more communication or information tools. This paper explains the Purpose and Functions of an Academic Library, the Need for Modern Academic Library Services, Modern and Information Services of the Academic Library, and Emerging Trends in Library and Information Services. In addition, this article is designed to help research scholars learn about these fields.