A First Guide to PostScript
www.cs.indiana.edu/docproject/programming/postscript/postscript.html   reviews

Internet PostScript Resources.
The name "PostScript" is a registered trademark of Adobe Systems Incorporated. All instances of the name PostScript in this text are references to the PostScript language as defined by Adobe Systems Incorporated unless otherwise stated. This is a prototype page attempting to list all the resources on the Internet related to PostScript programming and product development.
yoyo.cc.monash.edu.au/~wigs/postscript/   reviews

Examples from the Blue Book.
Basic graphics, printing text, applications, modifying and creating fonts.
www.science.uva.nl/~robbert/ps/bluebook/   reviews