caption: The image shows an open book with a variety of pictures of different types of cells, each with its own unique shape and size. The pictures are arranged in a grid pattern, with each cell having its own distinct shape and texture. The colors range from light yellow to dark brown, and the shapes range from small, round cells to larger, more complex cells. The text on the pages of the book provides further information about the cells, such as their size, shape, and other characteristics.