Random House

Happy Birthday to You Great Big Flap Book

Size Guide

Happy Birthday to You! Great Big Flap Book. Super-simple and super-sturdy, this board book adaptation of Dr. Seuss's beloved birthday classic is just right for his youngest fans! With a shortened, rhymed text, and over sixty flaps for little fingers to lift, it's an ideal introduction to the story and a perfect present for toddlers and preschoolers.

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Size Charts

Please note that sizes vary from manufacturer to manufacturer. Additional size charts are added as they become available. 

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