Biography of Percival Lowell is an in-depth exploration of the life and legacy of Percival Lowell, the renowned American astronomer, author, and founder of the Lowell Observatory. This comprehensive biography traces Lowell's journey from his privileged upbringing in Boston, through his academic pursuits at Harvard, to his transformative travels in the Far East, where he developed a fascination with Eastern cultures and philosophies. The book delves into Lowell's passionate interest in astronomy, particularly his controversial theories about the existence of canals and intelligent life on Mars, which captivated the public imagination and influenced scientific discourse for decades. Through detailed accounts of his scientific observations, personal correspondence, and published works, the biography paints a vivid portrait of Lowell as a visionary thinker, driven by curiosity and a relentless quest for knowledge. It examines his role in advancing planetary science, his establishment of the Lowell Observatory in Flagstaff, Arizona, and his enduring impact on the search for Planet X, which ultimately led to the discovery of Pluto. The narrative also explores Lowell's complex personality, his relationships with family and colleagues, and the challenges he faced in balancing skepticism and belief within the scientific community. Richly illustrated with anecdotes and historical context, Biography of Percival Lowell offers readers a nuanced understanding of a man whose ideas shaped modern astronomy and whose legacy continues to inspire astronomers and dreamers alike. This book is an essential read for anyone interested in the history of science, the mysteries of the cosmos, and the remarkable life of one of America's most influential astronomers.