Colouring books are no longer just for kids. Everyone from researchers to editors state that there is something calming that goes toward the immense appeal of colouring activity. Thus to help the grown-ups distract from the daily pressure of life, this series of 15 innovative Adult Colouring books on difference themes to explore concepts like beauty, creativity and more. Each book has over 30 patterns that provide hours of relaxation and entertainment as you express your creativity.