Decryption Gambit by Doug    CollinsThe Spy Who Came In from the Cold by John le CarréTinker, Tailor, Soldier, Spy by John le CarréThe Day of the Jackal by Frederick ForsythThe Bourne Identity by Robert Ludlum
Espionage
1,014 books — 1,242 voters

Ready Player One by Ernest ClineThe Martian by Andy WeirOld Man's War by John ScalziThe Hunger Games by Suzanne CollinsLeviathan Wakes by James S.A. Corey
Best Science Fiction of the 21st Century
1,120 books — 9,064 voters