A hardcover book, often referred to as a case-bound book, features stiff and durable covers that provide added protection for the pages inside. This binding style typically involves wrapping cloth, paper, or leather around a thick cardboard cover. Hardcovers are designed not only for longevity but also for aesthetic appeal, making them popular for children's books that are likely to be handled frequently. These books often feature colorful illustrations and can be found in both fiction and non-fiction genres, appealing to young readers and collectors alike.