This book can be read only when it’s wet

Over the past three months, in a small print shop in Toronto, a group of people has been hard at work making the impossible possible: a book that can be read only when you pour water over it.

The “Dehydrating Book” is the first of its kind. It was printed with a special hydrochromic ink that is invisible to the naked eye and becomes visible only when it’s wet. It is 100% waterproof and ships in a pouch full of water.

Why? To raise awareness about the global water crisis.

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