‘Deathly Hallows’ sold 15 mn copies in 24 hours
The final instalment of the Harry Potter series, 'The Deathly Hallows' is recognised by Guinness World Records as 'the fastest selling book of fiction in 24 hours' with a total of 15 million books sold. With 12 million books printed in the first run, it also holds a record for the 'highest initial print run for a fiction book'.