Freed from the constraints of life as full-time royals, the announcement comes two weeks after Harry and Meghan said they would no longer cooperate with several British tabloid newspapers because of what they called "distorted, false or invasive" stories.
Archie, who looks very much like his father, can be seen giggling as he helps his mother turn the pages, before getting a bit restless and grabbing another book which he throws towards his mum.
It was posted on Instagram as part of a Save the Children fundraising campaign for children and families struggling due to coronavirus. Happy Birthday, Archie!. Thank you #DuchessMeghan for helping us to raise urgent funds for our coronavirus appeal by reading "Duck!"
According to Deadline, Harper Collins-owned Dey Street Books has secured the rights to the book titled Finding Freedom: Harry and Meghan and the Making of a Modern Royal Family, written by Harper's Bazaar royal editor, Omid Scobie and royal reporter for Elle and Oprah magazines, Carolyn Durand.
Organisers behind the 'Global Sussex Baby Shower' on Twitter in April previous year have once again rallied Prince Harry and Meghan Markle's fans to donate to causes close to the couple's hearts. Meghan says as Archie smiles, flashing a few teeth. When the duchess tucks it down the side of the chair out of sight, he reaches for it once more and again drops it on the floor - prompting a laugh from Prince Harry. (Duke of Sussex/@SaveChildrenUK) Meghan gave Archie a kiss at the end of the video.
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A spokesperson for the Sussexes said: "As they celebrate this family moment, the duke and duchess wanted to continue to raise awareness around the urgency of bringing food and learning resources to millions of children".
"The Duchess chose to read one of Archie's favourite stories,"Duck!"
Meghan joins other famous faces including Helen Mirren, Jude Law, Stephen Fry and the singers Rita Ora and Liam Payne of One Direction who have read stories shared online.
Archie received happy birthday wishes from the official social media accounts of the Queen, Prince of Wales and Duchess of Cornwall and the Duke and Duchess of Cambridge, which all featured pictures of the young royal. COVID-19 further compounds these challenges. We receive 100% of your donation.