Ye Sundial Booke is a charming and comprehensive exploration of sundials, blending historical insight, practical guidance, and literary delight. Authored by T. Geoffrey W. Henslow and first published in 1914, the book serves as both a manual and a celebration of the ancient art of timekeeping by the sun. Henslow delves into the origins and evolution of sundials, tracing their use from antiquity through the Middle Ages and into the modern era. The book is richly illustrated with diagrams and photographs, offering readers clear instructions on the construction, placement, and reading of various types of sundials, including horizontal, vertical, equatorial, and portable designs. Beyond its technical content, Ye Sundial Booke is notable for its literary flair. Henslow weaves in poetry, proverbs, and mottoes traditionally inscribed on sundials, reflecting on the philosophical and moral lessons they impart about the passage of time and the fleeting nature of life. The text is peppered with anecdotes, historical curiosities, and references to sundials in art and literature, making it as much a cultural study as a practical guide. The book also addresses the scientific principles underlying sundial construction, such as the movement of the sun, the equation of time, and the importance of geographical location. Ideal for historians, gardeners, horologists, and anyone fascinated by the intersection of science, art, and history, Ye Sundial Booke remains a delightful and informative resource. Its blend of instruction, history, and reflection invites readers to appreciate sundials not only as instruments of timekeeping but also as enduring symbols of human ingenuity and our relationship with the natural world.