Kindle promotion here in the UK: can't see if it's available elsewhere, sorry!

But if you know anyone who hasn't read the books, or wants their own copy for the Kindle, Amazon UK are offering an omnibus of all five books for the price of one - 7.99 - which saves over 50 on them separately.

No idea how long it'll be at that price - I'm assuming it'll be over the weekend until the TV Season 4 starts, but it's not clear online.

But I can see it being a tempting offer for anyone who hasn't read the books yet.