Secret Garden 2016 Wall Calendar: An Inky Treasure Hunt and 2016 Coloring Calendar Calendar – Wall Calendar, November 24, 2015 by Johanna Basford Johanna Basford’s amazing 2013 bestseller Secret Garden fueled the adult coloring craze, selling an unprecedented number of copies. It was born out of the self-described “ink evangelist’s” passion for the hand-drawn line…