Stretchable electronics is a dynamic field of research with the potential to revolutionize human health, robotics, cameras, energy storage, and even building construction. Electronics with rubber-like form factors can integrate with irregularly shaped moving substances in a seamless manner; electronic skins for prosthesis is a good example. The field of stretchable electronics has evolved and matured over the past 20 years, training generations of researchers in the development of novel materials and structures to enable robust integration of miniaturized electronic components. This book presents the work and perspective of this next generation of innovators and disruptors who are driving an exciting phase of diversification and growth in the field.