Prince Harry is said not to be “upset” over the latest flop in his book’s paperback edition release, according to a royal expert.

The Duke of Sussex released his memoir, Spare, in January 2023. The book became an international bestseller, selling 1.4 million copies just on its first day in the UK, US, and Canada, according to its publisher, Penguin Random House.

However, its paperback edition, released on October 24 this year, was not as successful after selling just 1,809 copies in the UK in…