Appendix C. Resources
The official web site for the gnuplot project is www.gnuplot.info. There you’ll find the official documentation, including the extensive and helpful FAQ as well as links (not always current) to other sites and related projects.
Community support is available through the newsgroup comp.graphics.apps.gnuplot and the mailing list gnuplot-info@lists.sourceforge.net. There’s also a mailing list for gnuplot developers: gnuplot-beta@lists.sourceforge.net.
Very helpful, with many examples of more advanced uses, is the “not-so-frequently asked questions” list, maintained by Toshihiko Kawano at the Los Alamos National Lab: http://t16web.lanl.gov/Kawano/gnuplot/index-e.html.
And if you’re curious to see how far you can push gnuplot, I suggest you take a look at Bastian Maerkisch’s brilliant “99 Bottles of Beer” implementation: http://99-bottles-of-beer.net/language-gnuplot-1598.html.
These are books on topics relevant to the material in this book that I’ve found helpful and interesting.
The Elements of Graphing Data by William S. Cleveland. Hobart Press (1994).
Probably the definitive reference on graphical analysis (as opposed to presentation graphics). Much of the material in chapter 13 and chapter 14 has been influenced by Cleveland’s careful approach. There’s also a companion volume, Visualizing Data(1993), by the same author.