- _Quantum Time_ (2013)
- _The Time Traveler's Son_ (2009)
- _The Seventh Time Loop_ (2010)
- _The Infinite Loop_ (2011)
- _The Causal Paradox_ (2012)
- _Infinity's Edge_ (2014)
Nonfiction
- _The Science of Time Travel_ (2010)
- _The Physics of Multiverses: Beyond the Cosmos_ (2016)