"Shall I Compare Thee to a Summer's Day" is one of the most famous sonnets written by William Shakespeare. It is part of his collection of 154 sonnets, which explore themes of love, beauty, and the passage of time. In this poem, Shakespeare compares the beauty of a beloved to a summer's day, suggesting that the beloved's beauty is more enduring and perfect. The poem highlights the transient nature of summer, which can be too hot or too short, while the beloved's beauty is eternal. Through vivid imagery and metaphors, Shakespeare emphasizes that true beauty can be preserved through poetry, allowing the beloved to live on forever in the written word.