Smart textiles are a new and rapidly growing field - the potential for wearable devices is dramatic. This book is one of the first to approach sensing in smart textiles holistically from a materials science perspective and will be an important resource for students and researchers, providing a valuable perspective on the possibilities of fabric sensing. The book covers fabric sensor and transducer components, focusing on state of the art materials and the underlying challenges, including durability and power draw, as well as discussing the current fabric sensing and ancillary technologies.