The Histories of Middle-earth, 12 volumes by Tolkien. Review (in Italian) Review (in English) by Frank Manni.
The Uncharted Realms of Tolkien, by Alex Lewis and Elizabeth Currie. Review by Frank Manni of the Italian Tolkien Society, Endore fanzine, Oct. 9, 2002. In English.
Rovenandom, by JRRT. Posthumous.Review by Maeglin-(TV), Dec. 28, 2004
Book List:
The Letters of JRR Tolkien, edited by Humphrey Carpenter - includes texts of letters by Tolkien giving insights into his life, plus answers by JRRT himself to fan questions - recommended by Varda-(Valar)
Biography, by Humphrey Carpenter (authorized)
Characters from Tolkien, by David Day, may once have been titled A Tolkien Bestiary, 11 illustrators and a designer Debra Zuckerman - suggested by Varda-(Valar). Looking up Faramir, the entries were under "Gondor Men" and "Rangers of Ithilien", so be sure to use the index.
JRR Tolkien: Author of the Century , written by T.A. Shippey - includes insights as one who lived in Tolkien's place and held his Chair after he did. Recommended by Varda-(Valar)
The Languages of Tolkien's Middle-earth, by Ruth S. Noel - recommended by Thranduil-(V) and seconded by Irmo-(Valar)
Man and Myth, by Joseph Pearce - recommended by Irmo-(Valar)
Master of Middle-earth, by Paul Kocher (could be better researched)
The Mythology of Middle-earth, by Ruth S. Noel- recommended by Thranduil-(V) and seconded by Irmo-(Valar)
A Question of Time: JRRT's Road to Faerie , by Verlyn Flieger - recommended by Irmo-(Valar)
A Tolkien Bestiary, by David Day, illustrated by Alan Lee - recommended by Amandil-(V)
Tolkien's Legendarium, by Carl Hostetter and Verlyn Flieger - recommended by Irmo-(Valar), expensive
Tolkien's Ring, by David Day - suggested by Amandil-(V)
The Uncharted Realms of Tolkien, by Alex Lewis and Elizabeth Currie, in English. Review by Franco Manni, Oct, 9, 2002, in English.
Book List, written or edited by JRR Tolkien or Christopher Tolkien:
The Adventures of Tom Bombadil, by JRRT
On Fairy-Stories, by JRRT
Farmer Giles of Ham, by JRRT
The Father Christmas Letters, by JRRT. Posthumous.
Finn and Hengest, by JRRT. Poshumous.
The Homecoming of Beorhtnoth, by JRRT
Leaf by Niggle, by JRRT
Mr. Bliss, by JRRT. Posthumous.
The Monsters and Critics and Other Essays, by JRRT. Posthumous.
Pictures by J.R.R. Tolkien. Posthumous.
The Road Goes Ever On, by JRRT with Donald Swann
Rovenandom, by JRRT. Posthumous.Review by Maeglin-(TV), Dec. 28, 2004
Sir Gawain and the Green Knight, Pearl, and Sir Orfeo, by JRRT. Posthumous.
Smith of Wooten Major, by JRRT
The Hobbit, by JRRT
Lord of the Rings: all by JRRT
The Fellowship of the Ring
The Two Towers
The Return of the King
The Silmarillion, by JRRT, ed Chris. Posthumous.
Unfinished Tales, by JRRT; intro, commentary, and index by Chris. Posthumous.
The Letters of J.R.R. Tolkien Posthumous.
The History of Middle-earth: all from JRRT's notes, ed by Chris. Review (in Italian) Review (in English) of all 12 volumes by Frank Manni.
Vol. 1: Book of Lost Tales 1
Vol. 2: Book of Lost Tales 2
Vol. 3: The Lays of Beleriand
Vol. 4: The Shaping of Middle-earth
Vol. 5: The Lost Road and Other Writings
Vol. 6: The Return of the Shadow
Vol. 7: The Treason of Isengard
Vol. 8: The War of the Ring
Vol. 9: Sauron Defeated
Vol. 10: Morgoth's Ring
Vol. 11: The War of the Jewels
Vol. 12: The Peoples of Middle-earth
"A Pardoner's Tale", by Chaucer, edited by Christopher Tolkien - suggested by Amandil-(V)