Yes & Know Invisible Ink Book

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The Yes & Know® brand has been entertaining kids of all ages with clever invisible ink game books for nearly 50 years. From the ‘70s through the early ‘00s, Yes & Know® books were in store racks everywhere, providing on-your-own play in a simple, yet magical invisible ink reveal format. Yes & Know® provided generations of kids and kids-at-heart backseat travel entertainment for decades! Now it's back and BETTER THAN EVER!