A poem is a form of literary expression that uses rhythmic and often metaphorical language to convey emotions, ideas, or stories. It can vary in structure, including free verse, sonnets, and haikus, and often employs devices like rhyme, meter, and imagery to enhance its meaning and aesthetic appeal. Poems can be written about any subject, from nature to love to social issues. Famous poets like Robert Frost and Emily Dickinson have contributed significantly to the art form, showcasing how poetry can capture complex feelings and thoughts in a concise and impactful way.