Visual Style in children's books encompasses the unique artistic techniques and design elements that define the look and feel of a book's illustrations. It includes factors such as color palette, line work, character design, and the overall cohesion of visual elements. A book's visual style plays a crucial role in attracting young readers and enhancing their engagement with the story. For instance, a whimsical style may use bright colors and playful shapes, while a more subdued style might use earth tones and realistic representations. Each choice helps convey the mood and themes of the narrative.