- Illustrated Chapter Books
- Ages 7–10
- Comedy
Captain Underpants and the Perilous Plot of Professor Poopypants
Book 4 of 12 in Captain UnderpantsView the full series
A classic Captain Underpants entry built around name jokes, school cruelty and a villain whose ridiculous name becomes the whole point. It is silly on the surface, but more usefully read as comedy about mockery and humiliation.
- Best for7–10
- FormatIllustrated
- Length160 pp
- Read aloud~2 hr15 min
The vibe
What it’s like.
Style
- Conversational
- Comedic
- Onomatopoeic
Tone
- Funny
- Silly
- Irreverent
- Absurdist
- Exciting
Themes
Experience meters
What’s it about?
The story.
Professor Pippy P. Poopypants is a brilliant scientist with a very unfortunate name. When he becomes a teacher at Jerome Horwitz Elementary, George, Harold and the other children cannot stop laughing at him. Unfortunately, Professor Poopypants does not take this well. Armed with inventions, anger and a plan to make everyone else suffer silly names too, he becomes one of Captain Underpants' most memorable villains. The Perilous Plot of Professor Poopypants is full of absurd name charts, school jokes, Flip-O-Rama action and anti-authoritarian energy, but it also has a clearer emotional root than some entries: being laughed at can make people furious. The book is still gleefully ridiculous, yet it gives adults a useful opening to talk about teasing, empathy and how jokes land on other people.
Fit check
Right for your child?
Where it lands by age
- 1
- 3
- 5
- 7
- 9
- 11
- 13
- Best fit · 7–10
- Read aloud · 6–10
- Independent · 7–10
Prose load
Moderate
Visual support
High
Reluctant-reader friendly
Very
Read-aloud quality
Strong
Works well for
- Reading aloud
- Reading together
- Gift-buying
- Reluctant readers
Nothing in the book is likely to concern most parents. Safe to recommend without preview.
Bedtime suitability
2 / 5 · Better outside bedtime
Sensitive-child
4 / 5 · Good fit
Graphic intensity
1 / 5 · None
Best for
- Reluctant reader pick
- Name jokes
- School comedy
- Mad scientist
- Comic prose hybrid
Avoid if
- Dislikes name calling
- Dislikes toilet humour
- Prefers gentle books
- Wants realistic school story
Particularly good for children who are…
- Reluctant reader
- Struggling with reading
- Being bullied
In the classroom
How it works in school.
The anarchic, wildly funny Captain Underpants series — a legendary reluctant-reader hook and classroom-library staple.
A book children love that happens to support school — never a stand-in for the texts a class is taught with. Reviewed for the classroom · June 2026.
Why it lands
Why they love it.
Why kids love it
The book every Captain Underpants reader remembers because of the name-generator chart at the back — every child works out their Poopypants name and refuses to be called anything else for a week. The villain's whole problem is being laughed at for his name, which makes a seven-year-old quietly think about how mockery actually works.
- Breaking the rules safely
- Trickery and cleverness
- Revenge on adults
- Surviving danger
- Friendship and belonging
Why parents love it
The Captain Underpants entry that quietly does emotional work — being laughed at for your name is the villain's origin story, which a seven-year-old will absorb without it ever being preached. Plus the name-generator at the back occupies a sleepover for an hour. The most photocopied page in the series.
- Shared humour
- Quick to read
- Conversation starter
In the series
Captain Underpants.
12 books · open the series →
About the author & illustrator
Dav Pilkey.
If you liked this
Three ways out of this book.
If you liked this, try…
Lateral matches. Same shelf, different texture.
Come into this from…
Easier or preparing reads — perfect lead-ins.
Where to go next…
Escalation reads — a step up in scale, silliness, or stakes.
Buy or borrow
Pick up a copy.
- Bookshop.org ↗
- Waterstones ↗
- Amazon UK ↗
- Hive ↗
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