Agatha Christie pleased to have their own novels in print in 100 years. Just one of the 25 authors held with Edmund Wilson's views. Harper Collins also published a souvenir magazine "Shocking Real Murders: Behind Her Classic Mysteries". The "Guinness Book of World Records" lists Christie as the best-selling novelist of all time. Her novels have sold roughly 2 billion copies, and her estate claims that her works come third in the rankings of the world's most-widely published books, behind only Shakespeare's works and the Bible. Half of the sales are of English language editions, and the other half in translation. According
Agatha Christie page of the paper on 6 August 1975. Following the great success of "Curtain", Christie gave permission for the release of "Sleeping Murder" sometime in 1976 but died in January 1976 before the book could be released. This may explain some of the inconsistencies compared to the rest of the Marple series—for example, Colonel Arthur Bantry, husband of Miss Marple's friend Dolly, is still alive and well in "Sleeping Murder" although he is noted as having died in books published earlier. It may be that Christie simply did not have time to revise the manuscript before she died. In 2013,