Does your kid slam doors while yelling “I’M NOT ANGRY!!”? Meet their spirit animal: Grumpy Monkey (2018), the O.G. moodiness manifesto. Think Alexander and the Terrible, Horrible, No Good Day… but with more primate drama. Therapists adore it (“Finally, a book that doesn’t force toxic positivity!”).

Jory John fans (Couch Potato lovers!) will spot the vibe: Lang’s genius is letting Jake stay grouchy. No sudden rainbows—just friends who stick around, even when he hisses “GO AWAY.” The squirrel’s snack stash? Allegedly Trader Joe’s chili-lime cashews (ask a 7-year-old).

Classroom hack: Pair it with The Rabbit Listened for a “feelings duo.” And if your kid starts role-playing as a “grumpy monkey” at dinner? Congrats—you’ve unlocked Level 10 empathy. 🐒💢