caption: The image shows an open book with a drawing of various types of corals on it. The book is filled with intricate details of the corals, with each one having its own unique shape and texture. The colors range from bright and vibrant to muted and subtle, and the shapes range from smooth and glossy to rough and textured. The corals are arranged in a symmetrical pattern, with some overlapping each other, creating a visually pleasing composition.