The USGS has posted a scanned file of John P. Snyder’s 1987 “Map Projections: A Working Manual” online in PDF and DjVu format. The beginning of the book contains substantial introductory information about map projection families and distortions. Each projection is started with a useful summary of the context and usage of that particular projection. Snyder then delves into detail about the history, features, and usage before providing the mathematical formulas used to calculate the projection.
For a list of the projections reviewed in the manual, click here.
Information and picture taken directly from:
Sachiye Day, VERTICES intern