The book "Map Projections—A Working Manual" by John P. Snyder is a comprehensive guide to map projections, updated from the original USGS Bulletin 1532. It covers a wide range of projections, including cylindrical, conic, and azimuthal projections, and provides detailed descriptions of their characteristics, usage, and mathematical formulas. The book aims to be useful for both those interested in the philosophy and history of projections and those seeking mathematical details. It includes sections on the Earth's ellipsoid, scale variation, angular distortion, and transformation of map graticules. The author emphasizes the importance of understanding the principles behind map projections for accurate mapping and data transfer between different projections. The book also discusses the history of map projections, the development of new projections like the Space Oblique Mercator, and the use of projections for mapping extraterrestrial bodies. It concludes with a glossary, tables, and illustrations to aid in understanding and application.The book "Map Projections—A Working Manual" by John P. Snyder is a comprehensive guide to map projections, updated from the original USGS Bulletin 1532. It covers a wide range of projections, including cylindrical, conic, and azimuthal projections, and provides detailed descriptions of their characteristics, usage, and mathematical formulas. The book aims to be useful for both those interested in the philosophy and history of projections and those seeking mathematical details. It includes sections on the Earth's ellipsoid, scale variation, angular distortion, and transformation of map graticules. The author emphasizes the importance of understanding the principles behind map projections for accurate mapping and data transfer between different projections. The book also discusses the history of map projections, the development of new projections like the Space Oblique Mercator, and the use of projections for mapping extraterrestrial bodies. It concludes with a glossary, tables, and illustrations to aid in understanding and application.