Underwater kingdom: Coloring Book

A coloring book is a type of book containing line drawings, illustrations, or designs intended for people to add color using crayons, colored pencils, markers, or other coloring mediums. These books typically feature various themes such as animals, nature scenes, fantasy worlds, mandalas, famous landmarks, and characters from popular media.

Coloring books come in various formats and sizes, ranging from small pocket-sized editions to large-scale books with intricate designs. They are popular among children for both entertainment and educational purposes, as coloring can help develop fine motor skills, creativity, and concentration. Additionally, coloring books have gained popularity among adults as a form of relaxation and stress relief, often marketed as "adult coloring books" with more complex and detailed designs.

Some coloring books may also include additional features such as perforated pages for easy removal, thick paper to prevent bleed-through, and tips or instructions on coloring techniques. Overall, coloring books provide a creative outlet for individuals of all ages to express themselves through color and imagination.