It appears on the bottom left of the cover, but the image is quite small and really, I should have stated this here. So, better late than never: the book covers Stripes version 1.5. It is not yet released, but if you grab the latest snapshot, either from the Stripes site or SVN (see the Stripes main page for instructions), be assured that it is very close to what the final release will be; the feature set for version 1.5 is frozen and only urgent bug fixes, if any, will go into 1.5 until the final version is released.