On English Poetry by Robert Graves is a valuable book on writing and valuing poetry, as well as on the life and calling of a poet.
Robert Graves (1895 -1985) was a British poet, historical novelist, critic, and classicist. His father was Alfred Perceval Graves, a celebrated Irish poet and figure in the Gaelic revival; they were both Celticists and students of Irish mythology. Graves produced more than 140 works in his lifetime. His poems, his translations and innovative analysis of the Greek myths, his memoir of his early life—including his role in World War I—Good-Bye to All That, and his speculative study of poetic inspiration The White Goddess have never been out of print.