August 2nd is National Coloring Book Day, a holiday that was established by Dover Publishing in 2015. In true Inked fashion, we're celebrating this day with tattoos that appear to have been pulled straight from a sketch book. Over the past several years, illustrative tattoos have become a popular request in shops around the world. And what better way to celebrates the joys of coloring that with drawing-inspired tattoos? Take a look at 30 impressive illustrative tattoos in the gallery below, then let us know your thoughts on this story in the comments section.