The Expanse is a 9 book science fiction series from James S.A. Corey, the pen name for a collaboration between Daniel Abraham and Ty Franck.
The series is numbered here in publication order which is the recommended experience by the authors. There is an alternative chronological order (main novels in bold):
Drive (2012) The Churn (2014) The Butcher of Anderson Station (2011) Leviathan Wakes (2011) The…/>The/>Leviathan/>The/>The/>/>The
