The volumes of information created, generated and stored are immense that without adequate knowledge of information retrieval methods, the retrieval process for an information user would be cumbersome and frustrating. Studies have further revealed that information retrieval methods are essential in information centers for storage and retrieval of information. The paper discusses the concept of Information retrieval, the various information retrieval methods. It examines the users of these information methods and their information behavior. The conclusion emphasizes the need for a continuous evaluation of the information retrieval methods to make for and effective and efficient information retrieval system