Mandala color by number This book is a "color by number" version of our popular book "Mandala coloring book for kids ages 5-9" (ISBN-13: 978-1688410770). The book is full of easy and more advanced geometric, animal and flower mandala designs for everyday coloring. It includes 31 unique mandalas with thick lines and color keys. The concept of our coloring book "Mandala color by number" allows you to train short-term memory - each page followed with new color key! Also coloring process helps to develop fine motor skills, creativity skills, artistry and aesthetic vision. This book is perfect for kids and adults who prefer to color more calmly and leisurely, and want something less intricacy and detailed. "Mandala color by numbers" activity book recommended for beginners, children and seniors. Content information: - 6 pages for coloring with 7 colors - font size 15 pt - 6 pages for coloring with 9 colors - font size from 12 pt to 15 pt - 12 pages for coloring with 12 colors - font size from 11 pt to 15 pt - 7 pages for coloring with 15 colors - font size from 11 pt to 15 pt - 21 colors in total (light pink, pink, red, dark red, orange, light yellow, yellow, dark yellow, light green, green, dark green, light blue, blue, dark blue, teal, light purple, purple, beige, brown, gray, black) The illustrations are presented in order of complexity. Each mandala is printed on one side only. The back of each mandala page is black. Good for coloring with colored pencils, crayons, gel pens, fine liners. For coloring with water and alcohol based markers we would recommend use additional protective layer below current working page to avoid bleed-through. The pages of the book are not perforated, but can be easily removed with knife. I look forward to your feedback, let me know what you would like to see in forthcoming books. Thank you for choosing this book! Product details. - Book size is 8.5" x 11" (21,6 x 27,9 cm) - Printed on 60 lb White Paper (90 g/m2) - High quality glossy cover - Printed on one side only - 31 unique mandalas with thick lines and color key - All back pages are black