Prince William announces new book after Prince Harry reveals tell-all memoir plan

ok.co.uk:

It looks like it might be a case of 'Anything you can do, I can do better' for brothers Prince William and Prince Harry. Following on from the news that 36 year old Harry is set to write a tell-all memoir revealing all the details of his and Meghan Markle's exit from the Royal family, his elder brother William, 39 has revealed he had also contributed to a book.

Earshot: How to Save Our Planet is set for publication on September 30 and features an introduction by the William. Interestingly, news of William's new venture comes shortly after his brother Harry revealed that he was set to publish a memoir in which he has promised to share "mistakes and lessons learned" and be "wholly truthful" about the "highs and lows" of his life.