Crayola has developed a line of adult coloring books.
According to Gizmodo, artist Claudia Nice created the illustrations for the Color Escapes series. The four books feature the following artistic themes: geometric, kaleidoscope, nature, and garden.
Here’s more information from the Crayola website: “Color Escapes pages are printed on professional quality sketching paper to receive color from colored pencils or markers without bleed through. The oversized pages are perfect for framing so you can enjoy your creation anytime in your favorite room, or give as a gift to friends and family.”