John Lennon was a writer as well as a musician. It was entirely natural for him to put pen to paper whenever he had an idea, a thought, a reaction or a desire to communicate. He lived - and died - in an age before emails and texts. Pen and ink was what he turned to. John wrote letters and postcards all of his life; to his friends, family, strangers, newspapers, organisations, lawyers and the laundry - most of which were funny, informative, campaigning, wise, mad, poetic, anguished and sometimes heartbreaking. For the first time, John's widow, Yoko Ono, has given permission to publish a collection of his letters. The Editor is the Beatles' official biographer, Hunter Davies, who knew John well. John's letters are in a way something of a mystery - where are they all? Over the years many have come up at auction, then sold to dealers and collectors. Or they have been kept by the recipients, locked up safely. It has been a wonderful piece of detective work tracing many of these 250 letters, postcards and notes, which are arranged in chronological order, so that a narrative builds up, reflecting John's life. The book is visual - in a sense that many of the letters are reproduced as they were, in his handwriting or typing, plus the odd cartoon or doodle. The app contains selected content from the book, with 10 additional letters exclusive to the app with numerous features that enhance the book content, including audio of the letters, read by Christopher Ecclestone; a curated playlist of John Lennon music via iTunes; access to transcripts of each letter for complete legibility; and a foreword recorded by Yoko Ono.