"Horton Hears a Who!" is a classic children's book written by Dr. Seuss (Theodor Seuss Geisel). Published in 1954, the story revolves around Horton, an amiable and compassionate elephant who discovers a tiny planet called Whoville on a speck of dust. Despite facing skepticism and ridicule from the other jungle animals, Horton remains steadfast in his commitment to protect the microscopic Whos living in Whoville. The book conveys a powerful message about the importance of empathy, kindness, and the idea that every individual, no matter how small, deserves to be heard and valued. Dr. Seuss' whimsical illustrations and clever rhymes make "Horton Hears a Who!" a timeless and beloved tale that continues to resonate with readers of all ages.