Fermat's Enigma: The Epic Quest to Solve the World's Greatest Mathematical Problem

In about 1637, a French mathematical genius named Pierre de Fermat wrote in the margin of his copy of Arithmetica by Pythagorus, that he could prove that there were no solutions to the simple variation on Pythagorus' Theorem, az + bz = czwhen a, b, and c are integers and z is larger than two.

Visual Explanations: Images and Quantities, Evidence and Narrative

This is the third volume in a series by Edward Tufte (the others are "The Visual Display of Quantitative Information", and "Envisioning Information"). All three are beautifully crafted books that are a delight to read and to handle. The most recent one brings the reader's attention to the use of graphics, narrative, and numbers to convey motion, process, mechanism, cause and effect.

Digital Diffraction

I've always thought that optical transforms were a great model for the determination of crystal structures using X-ray diffraction, and I've used the ICE (Institute for Chemical Education) kit for this exercise many times.