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Paris Hilton -

Socialite Paris Hilton signs her book 'Your Heiress Diary: Confess it All to Me' at the Virgin Megastore in New York City in 2005. 

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Michelle Obama -

Former US First Lady Michelle Obama signs copies of her book 'Becoming' during a book signing event in New York City. To date, more than 11.5 million copies of the memoir have been sold worldwide since it was first published in November 2018.

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J.K. Rowling -

J.K. Rowling signs copies of 'Harry Potter and the Deathly Hallows' for 1,600 children at the Kodak Theater in Hollywood in 2007. The fantasy series has won multiple awards and sold more than 500 million copies, becoming the best-selling book series in history. 

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Pelé -

Brazilian soccer legend Pelé signs a copy of his 2006 autobiography 'Pele: The Autobiography' at a book shop in London. His autograph is still very much sought after by football fans around the world. 

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Arnold Schwarzenegger -

Before Hollywood and 'The Terminator,' Arnold Schwarzenegger was a hugely successful professional bodybuilder. Here he meets fans at a book signing for his autobiography and weight-training guide, 'Arnold: The Education of a Bodybuilder,' in Boston, Massachusetts, in September 1978.

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Gwyneth Paltrow -

Gwyneth Paltrow signs her book 'It's all good: delicious, easy recipes that will make you look good and feel great' in Nashville, Tennessee. To date the actress has published five culinary and lifestyle titles.  

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David Hasselhoff -

"The Hoff" poses modestly for the press before signing copies of his autobiography, 'Making Waves,' at a London bookshop. In a 2006 interview the 'Baywatch' star said the book would present the "last chapter" regarding controversial elements of his personal life.

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The Kardashians -

Khloe Kardashian, Kourtney Kardashian, and Kim Kardashian in 2010 making an appearance at Borders Century City in Los Angeles to sign copies of their book 'Kardashian Konfidential.' It was promptly listed on The New York Times Best Seller list later the same year. 

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Stephen King -

The horror, suspense, crime, and science-fiction novelist Stephen King signs copies of his book 'Revival' at a November 2015 event in Austin, Texas. To date his books have sold more than 350 million copies, and the author enjoys a high standing in pop culture. 

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Hill Harper -

Familiar for his roles on 'CSI: NY,' 'Limitless,' and 'The Good Doctor,' Hill Harper is the author of several well-received books. He's pictured here signing copies of his 2006 publication 'Letters to a Young Brother' in Atlanta, Georgia. 

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Billy Graham -

Evangelist Billy Graham signs copies of his book 'World Aflame' at a luncheon held in in his honor at the Dorchester Ballroom in London in 1966. The book describes a world ablaze with rebellion, threats, and war, and asks whether anything can be done about it.   

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Jimmy Carter -

Former US President Jimmy Carter holds up a copy of his book 'Faith: A Journey For All' at a New York book signing event. Carter, a Nobel Peace Prize winner, has been a prolific author since leaving office in January 1981.

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Jim Carrey -

Jim Carrey in a suitably comical pose hosts a signing for his 2013 children's book 'How Roland Rolls' at Toronto's Yorkdale Mall in Canada.

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Yoko Ono -

Ex-Beatle John Lennon with his wife Yoko Ono at Selfridges in Oxford Street, London, where Yoko was signing copies of her book 'Grapefruit.' Originally published in 1964 as an early example of conceptual art, the second edition was published in 1970, with an introduction written by Lennon. The pair are pictured in 1971. 

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David Attenborough -

The highly respected broadcaster and natural historian Sir David Attenborough has penned numerous books, often to complement his documentary work. Here he is signing copies of 'Life In The Undergrowth,' published in 2005, at the Natural History Museum in London. 

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Usain Bolt -

Athlete Usain Bolt strikes his trademark "Lightning Bolt" pose before a book signing event to promote his autobiography 'Faster Than Lightning' at The PUMA Store in Santa Monica, California in 2013. 

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Helen Mirren -

Actress Helen Mirren's 2007 autobiography 'In The Frame' features family photographs, publicity shots from her early career, and some stunning images by the world's leading photographers, all linked together with her memories of the time.  

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Muhammad Ali -

Muhammad Ali autographs his book 'The Greatest' (which in French translates as 'Le Plus Grand') for excited fans at a book signing event in Paris in March, 1974.  

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Sir Paul McCartney -

'Hey Grandude!' is a picture book for children written by Paul McCartney and illustrated by Kathryn Durst. Pictured is the former Beatle with a couple of young fans and their mom at a 2019 book signing in London. 

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Donald Trump -

Republican presidential hopeful Donald Trump, posing here with a fan, signs copies of his book "Crippled America: How to Make America Great Again" during an event at Trump Tower in November, 2015. Trump went on to become the 45th President of the United States. 

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Ethan Hawke -

Ethan Hawke signs copies of his 2015 book 'Rules For A Knight' in Toronto, Canada. The actor is a noted novelist, and 'Rules For A Knight' garnered positive reviews from critics. The story takes place in the 15th century and is written in the form of a letter from the novel's protagonist, Sir Thomas Lemuel Hawke, to his four children.  

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David Beckham -

English former professional soccer player David Beckham has one of the highest social media rankings in the world among sports fans, up there with Cristiano Ronaldo and Lionel Messi. His self-titled 2014 book (being signed here by the man himself in London) is one of several the icon has published since 2001's 'Beckham: My World.' 

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Sylvester Stallone -

The 'Rambo' and 'Rocky' actor signs copies of his book 'Sly Moves: My Proven Program to Lose Weight, Build Strength, Gain Will Power, and Live your Dream' at Planet Hollywood. Published in 2005, the book is essentially an action-orientated program for getting fit and eating correctly. But it's also a candid inside look at one of cinema's most famous stars.  

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James Baldwin -

Author James Baldwin sitting and signing copies of his non-fiction book 'The Evidence of Things Not Seen.' Published in 1985, the book chronicles the 1979–1981 Atlanta Murders, primarily referred to as the Atlanta Child Murders. It also examines the state of race relations in America. 

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Jeff Bridges -

Actor Jeff Bridges is pretty handy with a stills camera and has published several books of his photography. He's seen here wrapping up a book signing for 'Pictures by Jeff Bridges' in West Hollywood, California, in 2003. 

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Dulce Candy Ruiz -

One of YouTube's top fashion and beauty bloggers and influencers Dulce Candy Ruiz signs and discusses her book 'The Sweet Life: Find Passion, Embrace Fear, and Create Success on Your Own Terms' at a 2015 event in Los Angeles. 

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Ozzy Osbourne -

Former Black Sabbath front man and reality TV star Ozzy Osbourne holds a copy of his 2010 autobiography, 'I Am Ozzy.' The book was widely praised by its readers for its level of detail, and humor.  

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Alistair Cooke -

Celebrated for his radio broadcast 'Letter from America' and the television documentary 'America: A Personal History of the United States,' British-born American writer Alistair Cook's journalistic output also included numerous books. He's pictured here in 1973 signing copies of his book 'Alistair Cooke's America' in London.  

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Christy Turlington -

Model Christy Turlington has long been a practitioner of yoga, specifically a type of yoga known as Jivamukti. She is the author of 'Living Yoga: Creating A Life Practice,' first published in 2002. She's pictured at a Santa Monica bookstore the same year to promote the book and sign copies. 

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Mike Tyson -

Former heavyweight boxing champion Mike Tyson muscled in on his notoriety with his 2013 book 'Undisputed Truth,' which is effectively his autobiography. 

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Lauren Bacall -

Legendary actress Lauren Bacall wrote two autobiographies, 'Lauren Bacall by Myself' (1978) and 'Now' (1994). In 2006, the first volume of 'Lauren Bacall by Myself' was reprinted as 'By Myself and Then Some' with an extra chapter. It's this edition she's promoting here, signing copies in a Parisian book shop. 

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Gary Barlow -

Gary Barlow, the lead singer of British boy band Take That, attends a book signing at the launch of 'A Better Me' in London in 2018. The remarkably frank memoir charts his often torturous journey from an obese has-been to a superstar of music and television.   

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Grace Jones -

Grace Jones once declared that she'd never write her memoirs. So when she did finally decide to do so, she called the book 'I'll Never Write My Memoirs.' She's seen here smiling broadly at a signing event in Paris in 2016.  

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Rupert Everett -

English actor Rupert Everett speaks prior to signing his memoir, 'Rupert Everett: Red Carpets and Other Banana Skins,' at a bookstore in Hollywood, California, in 2007. It's been described as ''Hilariously honest... a kind of rake's progress."

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Serena Williams -

Tennis champ Serena Williams attends a 2009 book signing for her autobiography 'My Life: Queen of the Court' in London. 

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Dylan Thomas -

Influential Welsh poet and writer Dylan Thomas signing one of his books, 'In Country Sleep,' for American poet and literary critic John Malcolm Brinnin during a May 1952 reception held in Thomas' honor at the Gotham Book Mart in New York City.

See also: #WorldBookDay: Thirty books that influenced the world

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