Edward Tufte's "The Visual Display of Quantitative Information" was a ground breaking work on graphic presentation and data in pre-PC days. Much of computer generated graphs are based on the techniques he presented. As an end user I found his book fascinating and gave it a prominent place on my office shelves.The Visual Display of Quantitative Information
His now classic graph of Napoleons March to Russia is a tour de force of the sheer amount of data displayed in a single graph. The first edition was accompanied by a poster of that graph.