Image resolution is a critical concept in children's book publishing, as it determines how sharp and detailed illustrations appear in printed format. Typically measured in pixels per inch (PPI), higher resolution images have more detail, making them suitable for printing. In contrast, low-resolution images can appear pixelated or blurry. For children's books, which rely heavily on vibrant and engaging visuals, selecting the right image resolution is essential to ensure that the illustrations captivate the young readers and convey the story effectively.