“A Defence of Poetry” is a literary work of -

P. B Shelly was an English Romantic poet whose passionate search for personal love and social justice was gradually channelled from overt actions into poems that rank with the greatest in the English language.
His famous literary works are:
- Prometheus Unbound (1820),
- A Defense of Poetry (1820),
- Ode to the West Wind,
- To a skylark,
- The Revolt of Islam,
- Alastor,
- Ozymandias,
- Queen Mab,
- The Cloud.
Source: Britannica.com