We live in an era where technology is evolving faster than ever, shaping the way we work, think, and innovate. Digital computers have been our trusted companions for decades, processing information and making our lives easier. But now, quantum computing is on the horizon, ready to take us to new heights. As the name suggests, quantum computing harnesses the principles of quantum mechanics to process information in ways that classical computers cannot. A quantum computer is a device that makes use of quantum-mechanical phenomena to process data. It promises to solve incredibly complex problems that today's computers cannot handle.Quantum computing has diverse applications, such as computation, drug discovery, healthcare, materials science, complex financial and logistics systems, and new forms of cybersecurity. While quantum computing applications are still in their early stages, the excitement surrounding their potential is immense. Quantum computing is not just the future of technology, but a current innovation that may drastically change the world as we know it.This is a comprehensive introductory text on quantum computing and its applications in various industries. It is organized into fourteen chapters that summarize the applications in a concise manner. It is a must-read book for anyone who wants to learn about quantum computing, which is an important emerging technology.