Major advances have been made in the last 18 years in high-temperature superconductor (HTS) research and development, resulting in increased use of HTS materials in commercial and pre-commercial electric-power applications. This new and important book addresses the issues related to flux pinning, AC losses and thick YBCO film growth. Written by top most scientists in the world, it presents the current status and issues related to YBCO coated conductors and the need for further fundamental materials science work in YBCO coated conductor. This will be a useful handbook for years to come.