There's a Jubilee sale - but as well as lots of books about QEII, there's lots of 20th century and older history books, including quite a few about the Tudors by the looks of it, historical novels, crime fiction, some with no Jubilee theme at all.
For anti-Jubilee reading, there's a book about the Sex Pistols, perhaps. And possibly separately there's a Christopher Hitchens rant about the monarchy as a British foible coming out on 29 May at £1.29.