John Keats was an English Romantic poet, born on October 31, 1795. He is best known for his vivid imagery and emotional depth in poetry. His works often explore themes of beauty, nature, and mortality. Some of his most famous poems include Ode to a Nightingale, Ode on a Grecian Urn, and To Autumn. Keats' writing style is characterized by rich language and sensory detail. Despite his short life, as he died at the age of 25 from tuberculosis, Keats left a lasting impact on literature. His poetry has influenced many writers and continues to be studied and celebrated today. He is often regarded as one of the greatest poets in the English language.