Dr. Potturu Ranganayakulu, a professor of Ayurveda, discovered Esperanto—the planned language for international communication—during his college years and later traveled extensively across the world. Despite visiting numerous countries, he chose to write a travelogue on Japan, as he found it offered valuable solutions to many of India's challenges. In addition to his expertise in Ayurveda, Dr. Ranganayakulu is a historian with a Ph.D. in history, an amateur astronomer, and a lexicographer.