Lio is a comic strip created by Mark Tatulli that features a young boy named Lio and his adventures. The strip is known for its unique blend of humor and whimsy, often showcasing Lio's imaginative world filled with quirky characters, including monsters and animals. The comic is primarily wordless, relying on expressive illustrations to convey its stories. This allows readers of all ages to enjoy the strip without needing to understand complex language, making it accessible and appealing to a broad audience.