* The Right Kind of Evil (Italian title: Il giusta tipo di male, 2004; American title: La Mala Education, 2006)
* In His Wake (Italian: Nessuno è come te, 2007; American title: In the Dark of the Night, 2009)
* What He Does (Italian: Come te nessuno mai, 2009; American: This Is What Happened, 2011)
* Everything Burns (Italian: Sono con te, 2012; American title: The End of the World, As We Know It, 2014)
* After the Lights (Italian: Dopo la fine, 2014; American title: Shadows on the Horizon, 2016)
* The Key (Italian: Il brevetto del cuore, 2016; American title: The Repairman, 2018)
* The Last Secret (Italian: Il segreto di Viola, 2018; American title: No One Wins, 2020)
* The Circle of Liars (Italian: La ragazza della villa di fronte, 2021; American title: The Girl in the Villa Across the Street, 2023)
Short Stories
* The Last Letter, 2019
Graphic Novel (Co-Written)
* The End, 2012