With the book having already been through a proof read, the things I'm looking at this stage are mainly formatting errors. For example one section of text was the wrong font size and the spacing in a few places wasn't quite right. And for the wrap the blurb need to move over a little bit so it wasn't overlapping the crease.
Proof copy no. 2 is already on the way and hopefully I can check that for errors and then press the big OK button that means I can finally start selling the print version.