Richard Landwehr is the author of numerous books about the Waffen-SS, its non-German volunteers in particular, providing revisionist and apologetic accounts of these men and their battles. He has been producing the magazine Siegrunen on the same topic for over 30 years. Landwehr has written for the Journal for Historical Review (JHR) which is published by the Institute for Historical Review, an American Holocaust denial organization.
The military historian S.P. MacKenzie describes Landwehr as an "extreme admirer [from] the fringes of the far-right." MacKenzie connects Landwehr with the contemporary Waffen-SS historical revisionism, first propounded by HIAG, the Waffen-SS lobby group from the 1950–1990s. Commenting on this contemporary trend, Mackenzie writes that "as older generation of Waffen-SS scribes has died off, a new, post-war cadre of writers has done much to perpetuate the image of the force as a revolutionary European army" and includes Landwehr in this group.
- Narva, 1944: The Waffen-SS and the Battle for Europe ISBN 0-918184-02-9
- Budapest: The Stalingrad of the Waffen-SS ISBN 1-57638-129-3, ISBN 1-57638-128-5
- Nordic Warriors: SS-Panzergrenadier Regiment 24 Danmark, Eastern Front,1943-45 with Holger Thor Nielsen ISBN 1-899765-07-7
- Estonian Vikings: Estnisches SS-Freiwilligen Bataillon Narwa, Eastern Front, 1943-1944 ISBN 1-899765-09-3
- Fighting for Freedom: The Ukrainian Volunteer Division of the Waffen-SS ISBN 0-918184-05-3
- Lions of Flanders: Flemish Volunteers of the Waffen-SS 1941-1945 with Ray Merriam ISBN 0-918184-04-5
- The Wallonien: The History of the 5th SS-Sturmbrigade and 28th SS Volunteer Panzergrenadier Division with Ray Merriam and Jean-Louis Roba ISBN 1-57638-088-2