Not necessarily published in 2015 and not necessarily in order
  1. The Night Circus, Erin Morgenstern
  2. Everything I Never Told You, Celeste Ng
  3. The Star Side of Bird Hill, Naomi Jackson
  4. The Lowland, Jumpha Lahiri
  5. Whiskey Tango Foxtrot, David Shafer
  6. How to Start a Fire, Liza Lutz
  7. Death of Bees, Lisa O'Donnell
  8. Fangirl, Rainbow Rowell
  9. Carry On, Rainbow Rowell
  10. Big Little Lies, Liane Moriarty
  11. The Girl On The Train, Paula Hawkins
  12. The Martian, Andy Weir
  13. Bad Feminist, Roxanne Gay
  14. I Feel Bad About My Neck, Nora Ephron
  15. Alias Grace, Margaret Atwood
  16. The Handmaid's Tale, Margaret Atwood
  17. I Don't Have A Happy Place, Kim Korson
  18. Star Wars: Aftermath, Chuck Wendig