Book excerpt: Focusing on control and manipulation of plasmons at nanometer dimensions, nanoplasmonics combines the strength of electronics and photonics, and is predicted to replace existing integrated circuits and photonic devices. It is one of the fastest growing fields of science, with applications in telecommunication, consumer electronics, data storage, medical diagnostics, and energy. Nanoplasmonics: Advanced Device Applications provides a scientific and technological background of a particular nanoplasmonic application and outlines the progress and challenges of the application. It reviews the latest developments in nanoplasmonic applications, such as optical storage, photovoltaics, photocatalysts, integrated chips, optical elements, and sensing. The areas of application were chosen for their practicality, and each chapter provides a balanced scientific review and technological progress of how these areas of application are shaping the future.