The website has had a slight facelift. The main difference is that the book format descriptions (in between the number of pages and the price) are now shorter and more cryptic, but also more specific; see what the codes mean.
If you use an iPhone or other mobile Internet thingy, the site will look very different—it reformats itself to be easier to use on a small screen, at least that’s the idea.
Apologies in advance for any glitches that may result.