Fundamentals of Information Technology by Leon and Leon (2014) provides a comprehensive introduction to the essential concepts of information technology and its applications in various domains. It covers topics such as computer hardware and software, operating systems, databases, networking, and the Internet. The book also discusses the role of IT in business, communication, and society, making it suitable for students, educators, and professionals who need a foundational understanding of computing and information systems. The authors present complex technical ideas in a clear, accessible manner, ideal for both academic and self-study use.