Here are some key translations and a select list of books about Neruda. Over the years, I have found them keenly revealing and terrifically helpful.
The Poetry of Pablo Neruda, ed. Ilan Stavans. Farrar Straus Giroux, 2003.
Neruda and Vallejo: Selected Poems, ed. Robert Bly. Beacon, 1993.
Twenty Love Poems and a Song of Despair, tr. W. S. Merwin. Penguin, 2004.
Isla Negra: A Notebook, tr. Alastair Reid. Farrar Straus Giroux, 1981.
Selected Odes of Pablo Neruda, tr. Margaret Sayers Peden. Univ. of California, 1990.
Canto general, tr. Jack Schmitt. Univ. of California, 2000.
On the Blue Shore of Silence: Poems of the Sea, tr. Alastair Reid, with paintings by Mary Heebner. Rayo, 2003.
Toward the Splendid City: Nobel Lecture. Farrar Straus Giroux, 1974.
Memoirs, tr. Hardie St. Martin. Farrar Straus Giroux, 1977.
Passions and Impressions, tr. Margaret Sayers Peden. Farrar Straus Giroux, 1983.
Biographical and Critical
Translating Neruda: The Way to Macchu Picchu, by John Felstiner. Stanford Univ., 1980.
Neruda: An Intimate Biography, by Volodia Teitelboim, tr. Beverly J. DeLong-Tonelli. Univ. of Texas, 1991.
Photographs and Commentary
Pablo Neruda: Absence and Presence, by Luis Poirot, tr. Alastair Reid. Norton, 1990.
Novel about Neruda
Burning Patience (also The Postman of Neruda; inspiration for the film "Il Postino"), by Antonio Skarmeta, tr. Katherine Silver. Pantheon, 1987.
"Pablo Neruda Reading His Poetry." Caedmon, various editions.