Ben Jonson was a prominent Jacobean playwright and poet whose works significantly influenced English comedy and poetry, making him the second most important English dramatist after Shakespeare. His notable plays include 'Every Man in His Humour,' 'Volpone,' and 'The Alchemist,' and he was recognized for his classical learning evident in his poetry. Jonson continued to write until his death in 1637, leaving behind a legacy of impactful satirical and comedic literature.