- I, Q, Roland Smith, (Book one
- Trapped!, novel, James Ponti
- Spy camp, Stuart Gibbs
- The take, Christopher Reich
- The whites of their eyes, Andrew Clements ; illustrated by Adam Stower
- InvestiGators, written and illustrated by John Patrick Green ; with color by Aaron Polk
- Charlie Thorne and the lost city, Stuart Gibbs
- Spy School British invasion, Stuart Gibbs
- Secret, secret agent guy, Kira Bigwood ; illustrated by Celia Krampien
- City of the dead, by James Ponti
- Palace of spies, being a true, accurate, and complete account of the scandalous and wholly remarkable adventures of Margaret Preston Fitzroy, counterfeit lady, accused thief, and confidential agent at the court of his majesty, King George I, Sarah Zettel
- Didi Dodo, future spy, in recipe for disaster!, by Tom Angleberger ; illustrated by Jared Chapman
- Stormbreaker, Anthony Horowitz
- Scorpia, Anthony Horowitz
- Devil darling spy, Matt Killeen
- Relentless, Mark Greaney
- Spy school at sea, a spy school novel, Stuart Gibbs
- Cross my heart and hope to spy, Ally Carter
- NERDS, the cheerleaders of doom, Michael Buckley ; illustrations by Ethen Beavers, Book three
- Agent mongoose and the attack of the giant insects, by Marie P. Croall & Dan Jolley ; illustrated by Matt Wendt
- Gabby Duran and the Unsittables, Elise Allen & Daryle Conners
- Ark angel, Anthony Horowitz
- The white ghost, James R. Benn
- The girl with the dragon heart, by Stephanie Burgis
- Love, lies and spies, Cindy Anstey
- NERDS, National Espionage, Rescue, and Defense Society, by Michael Buckley
- Max in the house of spies, Adam Gidwitz
- Charlie Thorne and the last equation, Stuart Gibbs
- The Traitors' Gate, by Avi ; illustrated by Karina Raude
- For freedom, the story of a French spy, Kimberly Brubaker Bradley
- Crossing the line, Meghan Rogers
- I must betray you, Ruta Sepetys
- Murder, magic, and what we wore, Kelly Jones
- Spy school goes south, Stu Gibbs ; [endpaper art by Ryan Thompson]
- Agent Moose, Mo O'Hara ; with art by Jess Bradley ; color by John-Paul Bove ; lettering by Micah Meyer
- A spy in the White House, by Ron Roy ; illustrated by Timothy Bush
- Kitty Hawk, Roland Smith
- Spy ski school, Stuart Gibbs
- Point blank, Anthony Horowitz
- Foul Lady Fortune, Chloe Gong
- Nightshade, Anthony Horowitz
- United we spy, Ally Carter
- The invisible spy, Lisa McMann
- City spies, by James Ponti
- Chinese Cinderella and the Secret Dragon Society, Adeline Yen Mah
- The arm of the starfish, Madeleine L'Engle
- Spy school revolution, Stuart Gibbs
- Don't judge a girl by her cover, Ally Carter
- Beyond escape!, by R.A. Montgomery ; illustrated by Jason Millet
- Spy school project X, Stuart Gibbs