I was fortunate enough to be requested to review a copy of Philipp K. Janert's Gnuplot in Action before its release - the draft itself is still a work in progress, so this cannot be a full review. Because of this, it will not be scored on the KnowProSE.com scale. Also, humble apologies for the tardiness on this one. I wish I had been slacking off. Instead was really busy with travel and other things, otherwise this would have been up last week.
Graphical analysis of data is increasingly important these days because even looking at the data in a different way can lead to interesting insights. Gnuplot is an impressive application - I have had occasion to use it in the past when doing some R&D, and I admittedly wasted at least half a day fiddling with Gnuplot itself. Why? I don't use it every day - and it is safe to assume that a lot of people who would find it useful may be in the same boat. Therefore, the premise of the book seems sound.
The best way to 'explain' the usefulness of Gnuplot would be from Gnuplot examples themselves. For those of you who don't know what Gnuplot is, here's an introduction quoted from the Gnuplot home page (check out the link in the quotation):

4/10/2008: The book is now available 
