Mathematical Illustrations: A Manual of Geometry and PostScript
"This is a wonderful read...This book is highly recommended for a variety of readers.  Authors of mathematics (and various related fields) might learn about how to build better illustrations.  Students of mathematics might use the text to explore a variety of mathematical problems including the convex hull, triangulation, three-dimensional projections and more (indeed the author notes that the book has been used as a text in an undergraduate geometry class).  Programming students might use it as a springboard to learn an underused (and perhaps underappreciated) programming language, as well as some basics of geometry.  Even casual readers might learn more than a bit of programming, geometry and how to use illustrations to illuminate...This book will take a permanent place on my bookshelf and I will surely recommend it highly to anyone interested in geometry, mathematics, and illustrations as well as those who appreciate a good mathematical read."Computing Reviews"The geometry that best illustrates vector-graphic drawing methods is the subject of Casselman's book... I recommend it to all who are professionally or even casually interested in mathematical illustration... To read this text profitably requires, in addition to paper and pencil, a computer running a PostScript interpreter... Still, for lazy or computerphobic readers there remains close to a third of the book that is superb geometry. These passages can be enjoyed without even a glance at PostScript... Today most images end up in PostScript on the way to the printer, regardless of their origins.  Sometimes it becomes necessary to open the arcane code in a text editor and modify PostScript by hand. Even if you will never need to go this far, Casselman's book teaches you to appreciate the marvels of PostScript and of the geometry ideas relevant to this curious computer language."American Scientist"...this manual is a rich and educational guide to applying geometry and getting the most out of PostScript."MAA Reviews"Casselman is a mathematician interested in graphics and the book will appeal as much to mathematicians as it will appeal to programmers. Casselman's book certainly does its best to address the two topics of geometry and PostScript, and in this respect it is excellent."Notices of the AMS