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The adult coloring book craze that started at the beginning of 2015 shows no sign of slowing down. Lost Ocean, Johanna Basford’s newest book (and her first published by Penguin), sold more than 55,000 ...

Coloring isn’t just for kids anymore — it’s now a genuine pastime for adults, too. If you’d like to unwind with one of your favorite childhood hobbies, try a coloring book made just for grown-ups.