If you are interested in data analysis and visualization, you might be interested in the upcoming book: "Gnuplot in Action" (To be published, Jan 2009, Manning Publications.) The manuscript is now complete, and an excerpt from the first chapter, introducing Gnuplot and its use for Graphical Analysis, is available for free as "Green Paper" from the publisher's site: www.manning.com/janert This is also the LAST opportunity to make comments or give suggestions and feedback on the manuscript before it goes into print. You can email me (the author) directly, or post comments on the publishers "Forum" page. The book is available for pre-order from the publisher's site, and of course at Amazon (as well as other sellers): www.amazon.com/dp/1933988398 Feel free to forward this information as appropriate. Best, Ph.