Walter W. Bryant's 'Kepler' is a meticulously researched and beautifully written biography that delves into the life and work of the famous German mathematician, astronomer, and astrologer Johannes Kepler. The book offers a deep exploration of Kepler's contributions to the fields of astronomy and mathematics, including his laws of planetary motion and his groundbreaking work in optics. Bryant's prose is both engaging and informative, making 'Kepler' accessible to readers of all levels of expertise in the subject area. The book is a compelling blend of historical narrative and scientific analysis, shedding light on the challenges and triumphs of one of the most important figures in the history of science. Bryant skillfully weaves together a wealth of primary sources and scholarly research to create a comprehensive portrait of Kepler's life and legacy. Readers will come away with a newfound appreciation for Kepler's genius and the impact of his work on our understanding of the universe.