The book "HVDC Power Transmission Systems" by K R Padiyar is a comprehensive textbook that covers the fundamental principles, analysis, and design of HVDC power transmission systems. The author, K R Padiyar, is a renowned expert in the field of power systems engineering, with extensive experience in teaching, research, and industry. The book is written in a clear and concise manner, making it accessible to readers with a background in electrical engineering.

Based on its contents, clarity, and overall value, I give the book "HVDC Power Transmission Systems" by K R Padiyar a rating of 4.5 out of 5 stars.

Overall, "HVDC Power Transmission Systems" by K R Padiyar is a valuable resource that provides a comprehensive coverage of HVDC power transmission systems. Its clear explanations, mathematical derivations, and illustrative examples make it an excellent textbook for students and professionals alike.