Books by Theme: Spy

Adventures of Sara Gray series by Luke Jackson
1.Sleeper
2.Code Name: Sara Gray
3. The Children of Hamelin (not released, TBA)*

Spy Goddess series by Michael P. Spradlin
1. Live and Let Shop 
2. To Hawaii, with Love 
3. The Chase for the Chalice
4. The Quest for the Lance

The Gallagher Girls series by Ally Carter
1. I’d Tell You I Love You, But Then I’d Have to Kill You
2. Cross My Heart and Hope to Spy
3. Don’t Judge a Girl by Her Cover
4. Only the Good Spy Young

CHERUB series by Robert Muchamore

1. The Recruit

2. Class A

3. Maximum Security

4. The Killing

5. Divine Madness

6. Man vs. Beast

7. The Fall

8. Mad Dogs

9. Sleepwalker
9 ½ Dark Sun (released as part of World Book Day)
10. The General
11. Brigands M.C
12. Shadow Wave

Spy Girl series by Carol Hedges
1. The dark side of midnight
2. Out of the shadows
3.Once upon a crime
4.Dead man talking

Alex Rider series by Anthony Horotwiz
1. Stormbreaker
2. Point Blanc
3. Skeleton Key
4. Eagle Strike
5. Scorpia
6. Ark Angel
7. Snakehead

Spy X series by Peter Lerangis
1. The Code
2. Hide and Seek
3. Proof Positive
4. Tunnel Vision

Spy Girl series by Christine Harris
1. Secrets
2. Fugitive
3. Nightmare
4. Danger
5. Twisted


*Check author's website for release date

The books listed here are mainly spy/espionage, with the main plot of the story based on the main character being a spy. For novels where espionage/spying is also involved see Books by Theme: Mystery (to be posted some time in the near future!).