Dinosaurs Love Underpants

Opening spread weaponizes the title word with a shout-along command ("Shout hip-hooray for underpants!") while Ben Cort fills the page with striped, dotted and flowery pants; the hook fires on chantable meter + taboo-adjacent word in under three seconds. Comparable to the immediate-read-aloud grab of benchmark picture-book openers but sits one notch below the best.

WONDERPANTS and DINORMOUS are genuine playground coinages that stick in toddler brains for weeks, and the chantable title itself has become a preschool-classroom touchstone — World Book Day 2017 spin-off edition confirms the cultural echo. At the benchmark 8-tier for iconic-phrase stickiness within its age band.

A textbook reading-gateway book: low-stress rhyme, repetition-friendly template, taboo-adjacent humor, bright illustrations, and a shout-along hook make it a first-favorite for many preschoolers. World Book Day 2017's £1 compilation (Everyone Loves Underpants) chose this series as its anchor, confirming its gateway status. Sits firmly at the benchmark 8-tier for picture-book gateway power.

Kids invent their own X-Love-Underpants verses after reading (bunnies, grandmas, teachers) and Ben Cort's dense pattern work invites draw-your-own-pants games. Spark is modest but reliably activated — at the benchmark 6-tier for template-invitation creativity.

Engineered for read-aloud from the first line: gallop meter, AABB rhyme, shout-along refrains ("hip-hooray for underpants!"), percussive coinages that land as group beats, and two-page visual gags timed to page-turns. At the benchmark 9-tier for picture-book read-aloud, rivalling genre-best rhyme anchors like Julia Donaldson.

Strong rescue tool at picture-book level — short, hilarious, low-stakes, visually rich, and the taboo-adjacent title hooks kids who have decided books are boring. Sits at benchmark 7-tier for picture-book reluctant-reader rescue, effective within its age band.