Mandala Coloring Book For Seniors With a Black Background Our Mandala Coloring Book For Seniors: Black Background by Art Therapy Coloring has been created in order for senior citizens to experience the joy of coloring! This adult coloring book has the same quality of artwork that you find in our other adult coloring books with an essential adjustment; the designs are zoomed in so that they are easier to see and color. Mandala Coloring Book For Seniors: Black Background is full of adult coloring pages that are customized for senior citizen color enthusiasts! Filled with over 30 mandala coloring pages, this adult coloring book will be sure to please any senior who loves to color.