Oh, ghostwriter: that poorly-paid name snuck into the “Acknowledgements” section somewhere after agent’s agent and ex-wife’s third cousin. In the middle ground between Michael D’Orso, who spoke to The Millions of job satisfaction as a hired pen, and Sari Botton, whose reminisces are full of horror stories, Andrew Croft, author of 80 books that sold 10M copies under other people’s names, offers a circumspect take in his Guardian profile. “The ghost is advised never to forget that, at the end of the day, he or she ranks somewhere between a valet and a cleaner.”