In exploring the causes, processes, and patterns of convergence innovation, this book argues that the process of convergence innovation is a continuous disequilibrium between reference technology and its matching technology. Convergence innovation has been taking place mainly by applying IT technologies to vast areas of conventional technologies, so that individuals or firms reap the benefits of this convergence. Case studies show how such innovation is made possible by convergence, and how it ultimately improves the welfare of human beings as companies solve diverse problems and increase employment. This book was published as a special issue of the Asian Journal of Technology Innovation.