The History of The Lord of the Rings is a 5-book series with 5 primary works first released in 1984 with contributions by J.R.R. Tolkien and Christopher Tolkien.
1984 • 15 Readers • 522 pages • 5
2000 • 2 Readers • 1,680 pages
1989 • 1 Reader • 592 pages
1990 • 8 Readers • 476 pages • 5