Cat the Cat Books in Order
3 books by Mo Willems. Reading level: Grades 0.5–0.7. Lower Grades (Ages 5–8).
Series books grow with readers — but that's also the trap. Most series start at one reading level and one content intensity and drift upward over the course of the run. Cat the Cat (3 books by Mo Willems) lands at reading level Grades 0.5–0.7, with average content intensity 1/5. Intensity stays consistent across the series — a kid who can handle the first book can generally handle the rest.
The reading-order table below lists every book with per-volume reading level and intensity badges so you can spot any escalation before it catches your reader off guard. For a deeper dive into how we score text difficulty vs. emotional weight separately — and why series readers especially benefit from that split — see our methodology page.
Content Intensity Across the Series
ConsistentContent stays at a steady intensity level throughout the series.
Cat the Cat Reading Order
| # | Title | Reading Level | Content |
|---|---|---|---|
| 1 | Who is that, cat the cat? Mo Willems | Level K-1 | Gentle |
| 2 | Who says that, Cat the cat? Mo Willems | Level K-1 | Gentle |
| 3 | Who sleeps, Cat the cat? Mo Willems | Level K-1 | Gentle |
All Cat the Cat Books
Questions about the Cat the Cat series
- What reading level is the Cat the Cat series?
- The Cat the Cat series by Mo Willems is at a Grades 0.5–0.7 reading level (average Grade 0.6). Intended for Lower Grades (Ages 5–8). There are 3 books in the series.
- What order should I read the Cat the Cat books?
- The reading-order table above lists all 3 books with per-volume reading level and intensity ratings. Start with book 1 and read in publication order unless the table indicates a different recommended order for newer readers.
- What age is the Cat the Cat series appropriate for?
- The Cat the Cat series is recommended for Lower Grades (Ages 5–8). The average content intensity is 1/5. Check the intensity trajectory above to see whether content gets heavier across the series — if it does, sensitive readers may want to stop earlier in the run.