The amazing discounting machine does it again!

For some inexplicable reason amazon.co.uk has decided to reduce our book again for the second time in  a few weeks to the incredible price of £6.10! Giving you a huge saving of £1.89 off the full £7.99 retail price. We’re not complaining as we still get the same cut – it just means you all get a better bargain, so thanks amazon!

There’s also a reduction on the US version on amazon.com down 15% to $10.71.

If anybody can explain how amazon.co.uk decide to discount then we’d love to hear. Must be some complex algorithm I assume, but I cannot work out whether it’s to do with recent sales or visits to the page or reviews? Answers on a tweet please.