Partypooper: Diary of a Wimpy Kid (20)
by Jeff Kinney
PRHNZ Preview 2025
Great fit for 5th grade
Reading level and content both target 4th–8th grade · ages 9–14
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Genre
Themes
- friendship
- family dynamics
- popularity and social status
- embarrassment
- self-acceptance
- growing up
- responsibility
- plans gone wrong
About this book
Greg Heffley is throwing himself the ultimate birthday bash—but nothing goes according to plan. As the guest list spirals, decorations flop, and surprises misfire, Greg scrambles to save his big day. Packed with cartoon humor, family mayhem, and school social drama, this 20th Wimpy Kid entry is a fast, funny read for ages 8–12. Fans will love the relatable cringe moments and laugh-out-loud disasters.
Setting: modern-day suburban neighborhood and middle school, mostly at the Heffley home
Frequently Asked Questions
Is Partypooper: Diary of a Wimpy Kid (20) right for my child?
Yes — Partypooper: Diary of a Wimpy Kid (20) is a great fit for 5th grade. The reading level is AR 5.5, which is typical for 5th grade. The interest level is rated Middle Grades (4–8), meaning the themes and content are designed for ages 9–14 (4th–8th grade). Themes include friendship, family dynamics, popularity and social status.
How long does it take to read Partypooper: Diary of a Wimpy Kid (20)?
At a typical 5th grade reading pace, Partypooper: Diary of a Wimpy Kid (20) takes around 2.0h to finish. The book has 20,000 words. Slower or faster readers may vary significantly.
Does Partypooper: Diary of a Wimpy Kid (20) have an AR quiz?
Yes — Partypooper: Diary of a Wimpy Kid (20) has an AR quiz available, worth 3 points. Your child will need to take and pass the quiz through their school's Accelerated Reader program to earn credit. The quiz is typically 5–20 multiple choice questions about plot, characters, and setting.
What grade level is Partypooper: Diary of a Wimpy Kid (20)?
Partypooper: Diary of a Wimpy Kid (20) has an AR reading level of 5.5, which places it at a 5th grade reading difficulty. The interest level is rated Middle Grades (4–8) — this reflects the age-appropriateness of the content and themes, not just the reading difficulty. A strong younger reader may handle the words fine while the themes are aimed at an older audience, or vice versa.