The Routledge Handbook of Jack the Ripper studies will be published on 27 November 2025. This is an extensive multi examination of the 1888 Whitechapel murders across multiple disciplines with forty chapters written by experts in each field. My contribution covers copycat and legacy killings. More information is available here, https://www.routledge.com/The-Routledge-Handbook-of-Jack-the-Ripper-Studies/Kilday-Nash-Watson/p/book/9781032203348