I read pretty much anything, from fantasy (City of Stairs by Robert Jackson Bennett) to romance (Bared to You by Sylvia Day) to classics (Heart of Darkness by Joseph Conrad). The only genres I don't read are self-help and comic books/graphic novels.
Chilling account of the kidnap and murder of a teenage girl - made especially so by the words straight from the murdered girls' mother, Elizabeth Southall (real name Elizabeth Barber), who recounts her side of the investigation as compared to what Megan Norris writes from the point of view of a court reporter. I read this as an older teenager and it prompted me to say to my mum "If I ever disappear, it's not because I've run away or I'm out with friends. Something's happened to me and you need to make sure the police know that." Ever since I've semi-regularly reiterated that fact, just in case.