A sonnet is a specific type of poem with exactly 14 lines, usually written in a steady rhythm that sounds like a heartbeat when read aloud. Sonnets follow strict rules about how the lines rhyme and connect to each other, making them one of poetry's most disciplined forms.

The most famous sonnets come from William Shakespeare, who wrote 154 of them about love, time, beauty, and mortality. His sonnets typically present a problem or question in the first twelve lines, then offer a surprising twist or answer in the final two. For example, he might spend most of a sonnet describing how time destroys everything beautiful, then end with the idea that his poem itself will preserve that beauty forever.

Another popular sonnet form, called the Petrarchan sonnet after Italian poet Petrarch, is split differently: eight lines presenting a situation, then six lines responding to it. Imagine describing a difficult math problem in the first part, then explaining your solution in the second part.

Writing a sonnet is like solving a puzzle: you must express your complete thought in exactly 14 lines while following the rhyme pattern. When done well, those restrictions force poets to choose each word carefully, creating poetry that feels both controlled and powerful. Many poets still write sonnets today because the challenge of working within strict rules often produces surprisingly creative results.