Here is a comprehensive book that serves as a one-stop overview for understanding, developing, and deploying Information Systems. It aims to provide the students with a conceptual framework to understand Information Systems (IS). The text, written in easy to understand language using bullet form style to highlight various points, covers topics the way they are encountered by a typical IS professional. The book is divided into three units-Unit I: Information Systems Basics; Unit II: Managing with Information; and, Unit III: Managing Information Resources. Some of the topics discussed enlarge the scope of the book and include: e-Commerce and e-Business; CRM, ERP, and SCM; Application Scrap Book; Enterprise and Strategy; Strategy Planning for IS; and, Justification for IS. The main body of the text is supplemented with six appendices, which can be read on a need-to-know basis. The book is well suited for the undergraduate students of Computer Science and Engineering, Information Technology; postgraduate students of Information Technology and Computer Science; and, students pursuing MCA and MBA. Those teaching a course on IS or conducting equivalent training programme for professionals will also benefit from this text. Finally, the book would be useful for those professionals who wish to grasp the essentials without attending a formal instructional course.