Books by Stuart Gibbs
14 books by Stuart Gibbs have full reviews here; all 38 Stuart Gibbs titles and editions in our catalog are rated for reading level and content intensity.
Stuart Gibbs has 14 books with full reviews on HootRated, spanning Grade 4–6 reading level. The typical Stuart Gibbs book lands at Grade 6, with average content intensity 2.3/5. Most Stuart Gibbs titles fall within the Spy School series.
Reading level alone doesn't tell parents whether a Stuart Gibbs book is right for a child. 71% of Stuart Gibbs's reviewed titles are at Gentle or Mild intensity — appropriate for sensitive readers or kids reading ahead of their emotional readiness. None are rated Intense or Very Intense. The intensity badges below (green → red) help you match books to your child's emotional readiness, not just their reading ability. See our methodology for how we rate.
Double Cross
Stuart Gibbs
Double Cross
Stuart Gibbs
Spy school
Stuart Gibbs
Spy school
Stuart Gibbs
Evil spy school
Stuart Gibbs
Evil spy school
Stuart Gibbs
Big game
Stuart Gibbs
Big game
Stuart Gibbs
Spy ski school
Stuart Gibbs
Spy ski school
Stuart Gibbs
Waste of space
Stuart Gibbs
Waste of space
Stuart Gibbs
Spy school goes south
Stuart Gibbs
Spy school goes south
Stuart Gibbs
Spy School Project X
Stuart Gibbs
Spy School Project X
Stuart Gibbs
Spy School at Sea
Stuart Gibbs
Spy School at Sea
Stuart Gibbs
Spy School British Invasion
Stuart Gibbs
Spy School British Invasion
Stuart Gibbs
Spy Camp
Stuart Gibbs
Spy Camp
Stuart Gibbs
Evil Spy School
Stuart Gibbs
Evil Spy School
Stuart Gibbs
Spy School Secret Service
Stuart Gibbs
Spy School Secret Service
Stuart Gibbs
Spy School Revolution
Stuart Gibbs
Spy School Revolution
Stuart Gibbs
More Stuart Gibbs titles in our catalog
Each is rated too; choosing one opens it in search.
- Belly Up Level 7 · Moderate
- Charlie Thorne and the Last Equation Level 8 · Moderate
- Charlie Thorne and the Lost City Level 8 · Mild
- Evil Spy School the Graphic Novel Level 7 · Mild
- Labyrinth of Doom Level 4-5 · Mild
- Lion Down Level 7 · Mild
- Panda-monium Level 7 · Mild 2 editions
- Poached Level 8 · Mild
- Spaced out Level 7 · Mild 3 editions
- Spy Camp the Graphic Novel Level 7 · Mild
- Spy school goes east Level 5 · Moderate
Questions about Stuart Gibbs's books
- What reading level are Stuart Gibbs's books?
- Stuart Gibbs's reviewed books range from Grade 4–6, with the typical book at Grade 6. Each title has a separate content intensity score so parents can choose by emotional readiness, not just text difficulty.
- Are Stuart Gibbs's books appropriate for sensitive readers?
- 10 of Stuart Gibbs's 14 reviewed books (71%) are at Gentle or Mild intensity — safe for sensitive readers. None are rated Intense or Very Intense. Average intensity: 2.3/5.
- What age are Stuart Gibbs's books appropriate for?
- Stuart Gibbs's reviewed books target Ages 9-12. HootRated rates each book on reading level and content intensity — match both dimensions, not just one.