Tolkien Languages

William Morrow

The Languages of Tolkien's Middle-Earth: A Complete Guide to All Fourteen of the Languages Tolkien Invented

HarperCollins

A Secret Vice: Tolkien on Invented Languages    

University of Utah Press

A Gateway to Sindarin: A Grammar of an Elvish Language from JRR Tolkien's Lord of the Rings

Independently published

J. R. R. Tolkien's obscure languages dictionary: Glossary of Words in Noldorin, Rohirric and Black Speech (Languages from Lord of the Rings)

Harper Collins Publ. UK

The Peoples of Middle-earth: Book 12 (The History of Middle-earth)

Kent State University Press

Splintered Light: Tolkien's World, Revised Edition: Logos and Language in Tolkien's World (English Edition)

Independently published

Quenya Dictionary 2024: Learn Quenya | Elvish Dictionary for all levels | English - Quenya | Quenya - English (Languages from Lord of the Rings)

Athenaeum Edizioni Universitarie

Creating Worlds through Languages. Tolkien between Philology and Conlanging (Interlinguistica)

Words of Westernesse: Tolkien's languages of Men and Hobbits (Middle-earth Science Collection) (English Edition)

North Landing Books

Languages, Myths and History: An Introduction to the Linguistic and Literary Background of J. R. R. Tolkien's Fiction (English Edition)