Johanna Basford’s first adult coloring book, Secret Garden, was translated into 14 languages, outselling the most popular cookbook in Paris. “I think everyone has a creative spark; they just need the opportunity to let it flourish,” she said.

Courtesy Johanna Basford and Laurence King

"Sometimes the most valuable thing you can do is to give your work away for free," she told BuzzFeed News.

Courtesy Johanna Basford and Laurence King

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