"Definitely the best grayscale coloring book I've ever seen . . . I think it will be my favorite coloring book for Christmastime." -- Coloring with Alena, YouTube, June 19, 2018
"Probably the most lovely grayscale coloring book I have ever seen." -- Simple Art for Adults, YouTube, July 6, 2018
"I recommend for everyone." -- Jennifer Shaffer Art, YouTube, June 20, 2018
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