Between 1997 and 2007, JK Rowling published her seven Harry Potter novels, which became the best-selling book series of all time.

The fantasy series about a wizard school boy has sold over 600 million copies worldwide and is available in 85 languages.

In fact, the last four books set records as the fastest-selling books in history with the final instalment, Harry Potter and the Deathly Hallows, selling around 2.7 million copies in the UK and 8.3 million in the US within the first 24 hours of publication.

Now if you haven’t read them, where you have been?

Whether taking on the challenge for the first time or if you fancy revisiting the magic, there’s now a way you can read the Harry Potter books for free, but you’ll have to be disciplined and quick.

All seven Harry Potter books are available on Amazon Kindle and if you take up the free trial you’ll have two months to get through them.

At the average reading speed of 300wpm it would take you two days, 20 hours and six minutes to read the seven novels back to back.

To complete this task within the two month free trial period, you’ll need to set aside at least 1 hour and 8 minutes a day.