Despite having been announced well in advance of Black Friday, the promotion will still be valid well beyond the big day. Be sure to carefully time your sign up if you're waiting for a new release!

Sure, you have to enter payment details, but if you cancel anytime before the 3-month period is up, you won't pay a penny. If you do want to continue your subscription, it's just £7.99 as month thereafter. Considering a single ebook is often more expensive on its own, this remains a great deal. 

Kindle Unlimited is the complete digital book subscription, offering access to over 1 million books, thousands of Audible audiobooks and a selection of magazine subscriptions

The Kindle app is available across all major platforms, so you can still take advantage even if you don't have an Amazon device. If you have existing ebooks you'd like to be added to your Kindle library, read how to do that here.

Amazon are one of a number of retailers to discount products well ahead of Black Friday. Check out our round-up of the best Amazon deals