The Girl on the Train (2015) is a psychological thriller novel by British author Paula Hawkins. The novel debuted at No. 1 on The New York Times Fiction Best Sellers of 2015 list (combined print and e-book) dated 1 February 2015, and remained in the top position for 13 consecutive weeks, until April 2015. In January 2016 it became the No.1 best-seller again for two weeks. Many reviews referred to the book as "the next Gone Girl", referring to a popular 2012 psychological mystery with similar themes and use of unreliable narrators.
By early March 2015, the novel had sold over 1 million copies, and 1.5 million by April. It has occupied the number one spot of the UK hardback book chart for 20 weeks, the longest any book has ever held the top spot. By early August 2015, the book had sold more than 3 million copies in the US alone, and, by October 2016, an estimated 15 million copies worldwide. The audiobook edition, narrated by Clare Corbett, Louise Brealey and India Fisher (released by Books on Tape) won the 2016 Audie Award for Audiobook of the Year.