 Although he continued his work and training at Guy's, Keats devoted more and more time to the study of literature, experimenting with verse forms, particularly the sonnet.In May 1816, Leigh Hunt agreed to publish the sonnet "O Solitude" in his magazine, "The Examiner", a leading liberal magazine of the day.It was the first appearance in print of Keats' poetry, and Charles Cowden Clarke described it as his friend's red letter day, the first proof that Keats' ambitions were valid.