“A handful of startups in the US and abroad claim to have created their own algorithms or other data-driven approaches that can help them pick novels and nonfiction topics that readers will love, as well as understand which books work for which audiences. Meanwhile, traditional publishers are doing their own experiments: Simon & Schuster hired its first data scientist last year; in May, Macmillan Publishers acquired the digital book publishing platform Pronoun, in part for its data and analytics capabilities.”