Book illustration is the art of creating images to accompany a text in a book. These illustrations can enhance the reader's experience by providing visual context, helping to convey emotions, or bringing characters and settings to life. They can be found in various genres, including children's books, graphic novels, and even textbooks. Illustrators use different techniques, such as watercolor, ink, or digital art, to create their images. The style of illustration can vary widely, from realistic depictions to abstract interpretations, depending on the book's theme and target audience. Overall, book illustrations play a crucial role in storytelling and engaging readers.