
The Blade of Conan is a 1979 collection of essays edited by L. Sprague de Camp, published in paperback by Ace Books. The material was originally published as articles in George H. Scithers' fanzine Amra. The book is a companion to Ace’s later volume of material from Amra, The Spell of Conan (1980). Most of the material in the two volumes, together with some additional material, was reprinted from three previous books issued in hardcover by Mirage Press; de Camp’s collection The Conan Reader (1968), and the de Camp and Scithers-edited anthologies The Conan Swordbook (1969). and The Conan Grimoire (1972).

Blond Barbarians and Noble Savages is a 1975 collection of essays on the fantasy writers Robert E. Howard and H. P. Lovecraft by science-fiction writer L. Sprague de Camp, first published by T-K Graphics. It was reissued in 1986 by Borgo Press as number 2 in its Essays on Fantastic Literature series.

Blood & Thunder: The Life & Art of Robert E. Howard is a biography of the writer Robert E. Howard by Mark Finn, first published in a trade paperback edition in November 2006 by MonkeyBrain Books. A second, expanded and corrected edition was published in hardcover by The Robert E. Howard Foundation Press in January 2012; a trade paperback followed from the same publisher in 2013. Both editions include an introduction by suspense writer Joe R. Lansdale.

The Conan Swordbook is a 1969 collection of essays edited by L. Sprague de Camp and George H. Scithers, published in hardcover by Mirage Press. The essays were originally published as articles in Scithers' fanzine Amra. The book is a companion to Mirage’s other two volumes of material from Amra, The Conan Reader (1968) and The Conan Grimoire (1972). Most of the material in the three volumes, together with some additional material, was later reprinted in two de Camp-edited paperback anthologies from Ace Books; The Blade of Conan (1979) and The Spell of Conan (1980).

Dark Valley Destiny: the Life of Robert E. Howard is a biography of the writer Robert E. Howard by science-fiction writer L. Sprague de Camp in collaboration with Catherine Crook de Camp and Jane Whittington Griffin, first published in hardcover by Bluejay Books in December 1983, and in trade paperback by the same publisher in May 1986. An E-book edition was published by Gollancz's SF Gateway imprint on September 29, 2011 as part of a general release of de Camp's works in electronic form.

The Last Celt: A Bio–Bibliography of Robert Ervin Howard is a biography and bibliography of Robert E. Howard by Glenn Lord. It was first published by Donald M. Grant, Publisher, Inc. in 1976 in an edition of 2,600 copies.

The Miscast Barbarian: a Biography of Robert E. Howard is a biography by science-fiction writer L. Sprague de Camp, first published in hardcover and trade paperback in 1975 by Gerry de la Ree.

One Who Walked Alone: Robert E. Howard, The Final Years is a memoir of Robert E. Howard by Novalyne Price Ellis. Donald M. Grant, Publisher, Inc. published the book in 1986 with an edition of 800 copies. The book was adapted into the film The Whole Wide World in 1996. Grant has reprinted the book four times: 1988, 1998 and twice more. Starting with the third printing, the dust jacket was changed to include a picture of Renée Zellweger from her role in The Whole Wide World.

The Robert E. Howard Reader is a collection of essays on fantasy writer Robert E. Howard and his works, edited by Darrell Schweitzer. Originally scheduled for publication in 2007, it was ultimately published in September 2010 by Wildside Press.

The Spell of Conan is a 1980 collection of essays, poems and fiction edited by L. Sprague de Camp, published in paperback by Ace Books. The material was originally published as articles in George H. Scithers' fanzine Amra. The book is a companion to Ace's earlier volume of material from Amra, The Blade of Conan (1979). Most of the material in the two volumes, together with some additional material, was reprinted from three previous books issued in hardcover by Mirage Press; de Camp's collection The Conan Reader (1968), and the de Camp and Scithers-edited anthologies The Conan Swordbook (1969). and The Conan Grimoire (1972).