Meghan Markle has spoken out in her first interview since the bombshell revelations with Oprah Winfrey at the beginning of March.

The Duchess of Sussex has written a bestselling children's book, The Bench, and she has revealed that she loves seeing Prince Harry rocking Archie to sleep in a chat with Samantha Balaban on her NPR Weekend radio show, The Weekend Edition.

The interview was recorded before the birth of her daughter Lilibet on June 4.

Meghan shared details about what inspired her to write the book and that how watching Harry with Archie filled her with love as well how Princess Diana was in her mind while writing it.

Meghan Markle has spoken about the inspiration behind her children's book (
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Getty Images)

Meghan says the poem that runs through the book was inspired by watching her husband and their son, Archie, together.

She said: "I often find, and especially in this past year, I think so many of us realised how much happens in the quiet.

"It was definitely moments like that, watching them from out of the window and watching [my husband] just, you know, rock him to sleep or carry him or, you know ... those lived experiences, from my observation, are the things that I infused in this poem."

Meghan has given an interview about her children's book, The Bench (
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Getty Images)
Meghan Markle has said that Prince Harry inspired her book (
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Twitter@Queenvic)

Meghan said that she wanted represent those who don't often 'see' themselves in a book.

She continued: "Growing up, I remember so much how it felt to not see yourself represented.

"Any child or any family hopefully can open this book and see themselves in it, whether that means glasses or freckled or a different body shape or a different ethnicity or religion."

Meghan added: "There are lots of little small moments like that that were personal memories or anecdotes that I wanted infused in there."

This included being inspired by Princess Diana as she said that she has included her favourite flower, as well as her beloved rescue chickens.

"I needed my girls in there," Meghan said

Meghan's book is already a bestseller (
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Getty Images)

The book is an intimate, personal insight into her family life which she hopes will transcend other families across the globe.

She said: ""It's a love story. It's really just about growing with someone and having this deep connection and this trust so that, be at good times or bad, you know that you had this person.

"I really hope that people can see this as a love story that transcends the story of my family."

Meghan has previously described her book as an exploration of the "special relationship between father and son," releasing the statement: "The Bench started as a poem I wrote for my husband on Father's Day, the month after Archie was born.

"That poem became this story. My hope is that The Bench resonates with every family, no matter the makeup, as much as it does with mine."

After the release of the book, Meghan said in a statement: "While this poem began as a love letter to my husband and son, I'm encouraged to see that its universal themes of love, representation and inclusivity are resonating with communities everywhere.

"In many ways, pursuing a more compassionate and equitable world begins with these core values."

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