The Literary Saloon provides a link to an article in the New York Times about the sales of books in the US during the past year. You can read it yourself by clicking here, but note (a) that you have to register, and (b) that you have to put up with an advert for Buick before you get to read it.
The general picture is one of doom and gloom, but the main point is that we get some solid figures from Bookscan, rather than just flim-flim from a publisher's spokesperson.
And, of course, you won't be surprised to read the Literary Saloon's comment that Salman Rushdie 'hasn't had a sales-success in the US in ages (which probably has something to do with the facts that the past few books haven't been that great (to put it politely)); like Martin Amis he gets tons of press, but shifts (relatively) few copies.'
Go on. Really? Who'd've thunk it.