| R Murray Schaffer | the Chaldean Inscrption (Underwhich Editions) | | Canada | Mag/Lit |
| R Murray Schaffer | The Book of Noise (Arcana Editions) | 1998 | Canada | Mag/Lit |
| R&D28 | A Coil Magazine Promo | 1987 | United Kingdom | Mag/Lit |
| R&D28 | Mick Gaffney Distribution Overview | | United Kingdom | Mag/Lit |
| R. K. Yoshi | Multilingual Script Chart | | India | Poster |
| R. K. Yoshi | selected works and Promomaterial | | India | Mag/Lit |
| R. K. Yoshi | The Gathering Poster | 1985 | India | Poster |
| Radio Werewolf | Poster Kaufleuten Zürich 30.Dezember 1991 | 1991 | Switzerland | Mag/Lit |
| Radio Werewolf | Radio Werewolf Posters | | | Poster |
| Rafael Barreto-Rivera | Here it has rained (Underwhich Editions) | 1978 | Canada | Mag/Lit |
| Rafael Flores | Letter ECDM | | Spain | Mag/Lit |
| Rain in the Face | Rain in the Face postcards and information | | United Kingdom | Mag/Lit |
| Rain in the Face | selected posters /ephemera | | United Kingdom | Mag/Lit |
| Raincoats | The Raincoats Booklet | | United Kingdom | Mag/Lit |
| Ramleh | Ramleh in Maelzel No.3 | | United Kingdom | Mag/Lit |
| Raoul Hausmann | 10 Postcards | | Austria | Postcards |
| Raoul Hausmann | 5 Dada-Manifeste (Reflection Press) | 1972 | Germany | Mag/Lit |
| Raoul Hausmann | 7 Manifeste (Reflection Press, Flug/FluxBLATTzeitung Nr.7)) | | Germany | Mag/Lit |
| Raoul Hausmann | die Sprache der Fische (PaRaBü 05) | | Germany | Mag/Lit |
| Raoul Hausmann | Disegni (Studio Brescia) | | Italy | Mag/Lit |
| Raoul Hausmann | la Sensorialite Excentrique (Sagemorcim) | 1970 | Austria | Mag/Lit |
| Raoul Hausmann | la Sensorialite Excentrique Optophnetique | 1969 | France | Mag/Lit |
| Raoul Hausmann | Manifest von der Gesetzmäßigkeit des Lautes (Reflection Press) | 1974 | Austria | Mag/Lit |
| Raoul Hausmann | mit verbundenen Augen (Reflection Press) zweite Auflage | 1973 | Germany | Mag/Lit |
| Raoul Hausmann | Sprechspaene (Petersen Presse) | 1962 | Austria | Mag/Lit |
| Raul Marroquin | Changing Personalities | | Netherlands | Mag/Lit |
| Raul Marroquin | HOW? | | Netherlands | Mag/Lit |
| Raul Marroquin | Photo | | Netherlands | Mag/Lit |
| Ray diPalma | Genesis (Underwhich Editions) | 1980 | Canada | Mag/Lit |
| Religious Overdose | Promo Info and Posters | | United Kingdom | Mag/Lit |
| Réseau D'Ombres | Promo to Tape 1-3 | | France | Mag/Lit |
| Réseau D'Ombres | Reseau D'ombre Poster | | France | Poster |
| Residents | 10 Anniversary card | | United States | Mag/Lit |
| Residents | Freak Show | 0 | United States | Mag/Lit |
| Residents | letter Culture does change | | United States | Mag/Lit |
| Residents | Marlboro Promo Kit | | United States | Mag/Lit |
| Residents | Mole Show Poster 1983 Florence, Teatro Apollo | 1983 | Italy | Mag/Lit |
| Residents | press map | | United States | Mag/Lit |
| Residents | Uncle Willie's Highly Opinionated Guide To The Residents | 1993 | United States | Mag/Lit |
| Richard Franecki | Letter | | United States | Mag/Lit |
| Richard H. Kirk | Mailart by Richard H Kirk (from Baroni Archive) | | United Kingdom | Mag/Lit |
| Richard Hammersley | AOL (Lobby Press) | 1980 | United Kingdom | Mag/Lit |
| Richard Kern | T-Shirt | | | Mag/Lit |
| Richard Kostelanetz | Foreshortenings and other Stories (Tuumba Press 14) | 1978 | United States | Mag/Lit |
| Richard Kostelanetz | Wordsand (Simon Fraser Gallery) | 1978 | United States | Mag/Lit |
| Richard Mathews | A Mummery (Konglomerati Press) | | Russian Federation | Mag/Lit |
| Richard Tabor | Boboli Mariette Le Machine (KMP K! Publishing) 1980 | 1980 | United Kingdom | Mag/Lit |
| Richard Tabor | Status and Amnesty | | United Kingdom | Mag/Lit |
| Richard Tabor | xpls x eleven miniature sketches KMP K! | 1979 | United Kingdom | Mag/Lit |
| Richard Tabor and Richard Hammersley | Poetry | | United Kingdom | Mag/Lit |
| Richard Truhlar | Figures in Paper Time (AYA Press) | 1989 | Canada | Mag/Lit |
| Richard Truhlar | Moon Dice (Underwhich Editions) | 1982 | Canada | Mag/Lit |
| Richard Truhlar | Open Translations (Phenomenon Press) | 1978 | Canada | Mag/Lit |
| Richard Truhlar | Seven Portraits (Curvd H&Z 89) | 1981 | Canada | Mag/Lit |
| Richard Truhlar | Ten Portraits (Kontakte Series 1 No.2 Phenomenon Press) | 1978 | Canada | Mag/Lit |
| Richard Truhlar | Trace-form Imagery in Venetian Ornamental Cookery (Underwhich Editions) | 1985 | Canada | Mag/Lit |
| Rik Rue | Murmurs Cassette Promo-Sheet | 1985 | Australia | Mag/Lit |
| Rik Rue | Tapes Flyer | | Australia | Mag/Lit |
| Rino de Michele | la gatta di maria | | | Mag/Lit |
| Rob Smit | Durch Label overview | 0 | Netherlands | Mag/Lit |
| Robert Calvert | The Kid from Silicon Gulch Program Sheet to Performance | | United Kingdom | Mag/Lit |
| Robert Creeley | Inside Out Sparrow 14 (Black Sparrow Press) | 1973 | | Mag/Lit |
| Robert Creeley | The Creative Sparrow 6 (Black Sparrow Press) | 1973 | | Mag/Lit |
| Robert Filliou | 14 Chansons et 1 Charade (Edition Hansjoerg Mayer) 1968 | 1968 | Germany | Mag/Lit |
| Robert Filliou | International Research | | | Mag/Lit |
| Robert I Gillham | Aconiteworks Triangle for Editions But o Saho | 1983 | United Kingdom | Mag/Lit |
| Robert I Gillham | Assorted Tape-Reviews | | United Kingdom | |
| Robert I Gillham | Gillham Review in Cassette Pets 1 (Dean Poole) | | United Kingdom | Mag/Lit |
| Robert I Gillham | Gillham Review in New Systems 01 | | United Kingdom | Mag/Lit |
| Robert I Gillham | Overview of Tape-Releases and Projects | | United Kingdom | Mag/Lit |
| Robert I Gillham | Robert I Gillham early Cassette Overview | | United Kingdom | Mag/Lit |
| Robert I Gillham | Robert I Gillham Newsletter 1 | | United Kingdom | Mag/Lit |
| Robert I Gillham | Robert I Gillham Newsletter 2 | | United Kingdom | Mag/Lit |
| Robert I Gillham | Robert I Gillham the Book of Crystal Seers Volume Seven | | United Kingdom | Mag/Lit |
| Robert I Gillham | Tape-List of Gillham releases | | United Kingdom | Mag/Lit |
| Robert I Gillham | Tapelist | | United Kingdom | Mag/Lit |
| Robert I Gillham | The Knife Smoke Stack Poems | | United Kingdom | |
| Robert I Gillham | The Knife Smoke Stack Poems | | United Kingdom | Mag/Lit |
| Robert I Gillham | The Poor Clay | | United Kingdom | Mag/Lit |
| Robert I Gillham | The Quest for th Egg Chapter 2 | | United Kingdom | Mag/Lit |
| Robert I Gillham | Vree 33 - If you don't like it wipe it Review | | United Kingdom | Mag/Lit |
| Robert I Gillham | Wile it Conradviedts Moustache Info | | United Kingdom | Mag/Lit |
| Robert I Gillham | Words on Paper | | United Kingdom | Mag/Lit |
| Robert I Gillham | Words on Paper - Complete Poems Vol.1 (Monkshood Publications) | 1982 | United Kingdom | |
| Robert Rich | Several Promosheets | | United Kingdom | Mag/Lit |
| Robert Watts | Events (Fluxus Europe) | 1965 | Netherlands | picture |
| Roberto Sanesi | Ipotesi Dell'Ospite Inatteso (Editioni dell'Albero Poeta) | 1970 | Italy | Mag/Lit |
| Robin Crozier | Anthology | | | Mag/Lit |
| Robin Crozier | Art and the Sea | | United Kingdom | Mag/Lit |
| Robin Crozier | Portrait of Robin Crozier (Ceolfrith 25, 1975) | 1975 | United Kingdom | Mag/Lit |
| Robin Crozier | Portraits Of.... | 1976 | United Kingdom | Mag/Lit |
| Robin Crozier | Shirt for T-Shirt Exhibition at APROPOS | | United Kingdom | Mag/Lit |
| Rod Summers | Environmental Recreations Stage One | 1978 | Netherlands | Mag/Lit |
| Rod Summers | Influence | | Netherlands | Mag/Lit |
| Rod Summers | Mail project | | Netherlands | Mag/Lit |
| Rod Summers | Mirrored and withered Postcard | | Netherlands | Postcards |
| Roland Sabatier | Accords (Publications PSI) | 1976 | France | Mag/Lit |
| Roland Sabatier | Notes pour la Description Vague de 12 Lettries (Publications PSI) | 1976 | France | Mag/Lit |
| Roland Sabatier | Oeuvres Musicales & Poetiques (Publications PSI) | 1976 | France | Mag/Lit |
| Roland Sabatier | Pièce pour valse, néant et profession de foi (Publications Psi, 1976) | 1976 | France | Mag/Lit |