To celebrate Archie's first birthday today, Meghan Markle shared a cute video of her reading to him and eagle-eyed royal fans noticed a sweet additional to the book.
The adorable clip, with Prince Harry behind the camera, featured the blue book titled "Duck! Rabbit!" and was shared on the Save the Children Instagram page.
However if you zoom into the right hand side of the book near the the top there is a clue little Archie could be following in the footsteps of Oprah Winfrey, Sarah Jessica Parker and Reece Witherspoon.
Royal fans revealed on social media that at very close inspection there is a white sticker with black writing that says "Archie's Book Club".