Comedian, actor and writer David Mitchell discusses Back Story - his frank and funny memoir in which he reveals how to become a comedian, how to buy underpants, the danger of lobsters, and much more. Moderated by Boyd Hilton at the Apple Store Regent Street.

Join Michael Palin as he discusses his latest travel book and accompanying TV series Brazil. From the depths of the Amazon rainforest, to the shanty towns of Rio, Michael Palin examines this vast and disparate nation and takes a closer look at a country of unexplored wildernesses and bustling modern cities.

Join award-winning children’s author Michael Morpurgo as he discusses his career, his inspiration and his best-selling book and new iPad app for War Horse. As well as an enhanced, interactive digital edition of the book, which includes a special live reading by the author, the app explores the real story of the First World War through documents, maps, photographs and film.

Join Nigella Lawson as she discusses her best-selling books, successful TV series and her new and exclusive apps Nigella Quick Collection for iPad and Nigellissima.   Nigella’s bestselling and award-winning Nigella Quick Collection iPhone app is now optimised for iPad, with exclusive new features and over 100 recipes. Combining video, audio and time-saving features, it makes every meal easy, bringing you inspiration from Nigella.   Nigellissima is a new taster-app featuring nine delicious Italian-inspired recipes.

Join World-Record holder and four-time Olympic Champion sprinter Michael Johnson as he discusses his career, his best selling book Gold Rush and his upcoming apps.

An exclusive World Book Day Meet the Author event with Charlie Higson, Malorie Blackman and Sophie McKenzie at the Apple Store, Covent Garden in London.

TV presenter, mathematician and comedian Johnny Ball appeared at the Apple Store, Covent Garden to talk about his new book, Ball of Confusion: Puzzles, Problems and Perplexing Posers, before answering questions from the audience. Johnny was interviewed by the Gadget Show's Jason Bradbury. The event took place on Thursday, 20th October, 2011 at 7pm.

Lord Sugar, the self-made multi-millionaire behind Amstrad and The Apprentice, appeared at the Apple store in Covent Garden on 26th October 2010 to talk about his autobiography, What You See Is What You Get. Lord Sugar was interviewed by Adrian Chiles.

Professor Brian Cox, OBE, the presenter of the hugely popular BBC2 series Wonders of the Solar System, appeared at the Apple Store in Covent Garden on 17th November 2010 to talk about his book, which accompanied the series. Professor Cox was interviewed with BBC Radio 6 Music DJ Shaun Keaveny.

Professor Brian Cox, OBE, the presenter of the hugely popular BBC2 series Wonders of the Solar System, appeared at the Apple Store in Covent Garden on 17th November 2010 to talk about his book, which accompanied the series. Professor Cox was interviewed with BBC Radio 6 Music DJ Shaun Keaveny.