| LUTGENS (Rainer E) | Deutsches Reich postgebuhrenkatalog 1923 bis 1945: die gebuhren und bestimmungen der Deutschen reichspost im post und telegraphenbetrieb [1986] | N/A |
| LUX (Pierre) editor | La Poste Ferroviaire de 1871 a 1914. Part 1 [1998] | Railways |
| LUX (Pierre) editor | La Poste Ferroviaire de ses debuts a 1870: part 2, [1992] | Railways |
| LYNN (William A) | The Popular Guide to the Telegraph & Postal Services [1884] | Telegraph |
| MABBETT (B J) | St Helena: the postal, instructional and censor markings 1815-2000 [2002] | Military |
| MABBETT (B J) | St Helena, the philately of the camps for Boer prisoners of war April 1900 to August 1902 [1985] | Military, POW |
| MACDONALD (J J) | The Nova Scotia post: its offices, masters & marks 1700-1867 [1985] | N/A |
| MACFIE (Donald) | Angbatspost (1869-1951) [1977] | Maritime |
| MACKAY (J A) | Skye & The Small Isles [1978] | N/A |
| MACKAY (J M) | Shetland [1979] | N/A |
| MACKAY (James A) | Official Mail of the British Isles [1983] | Official |
| MACKAY (James A) | The Parcel Post of the British Isles [1982] | Parcels |
| MACKAY (James A) | Surcharged Mail of the British Isles [1984] | Postage Dues |
| MACKAY (James A) | The Floating Post Offices of the Clyde [1979] | Maritime |
| MACKAY (James A) | Isle of Wight [1981] | N/A |
| MACKAY (James A) | Bute [1979] | N/A |
| MACKAY (James A) | Scottish Islands – supplement & catalogue [1980] | N/A |
| MACKAY (James A) | Dumfries [1980] | N/A |
| MACKAY (James A) | The Uists & Barra [1978] | N/A |
| MACKAY (James A) | Mull, Iona, Coll & Tiree [1979] | N/A |
| MACKAY (James A) | Islay, Jura & the other Argyll Islands [1979] | N/A |
| MACKAY (James A) | The circular name stamps of Scotland | N/A |
| MACKAY (James A) | Lewis [1978] | N/A |
| MACKAY (James A) | Orkney & Stroma [1979] | N/A |
| MACKAY (James A) | The Postal History Annual 1980 | N/A |
| MACKAY (James A) | The Skeleton Postmarks of Scotland [1978] | N/A |
| MACKAY (James A) | Scottish Postmarks [1978] | N/A |
| MACKAY (James A) | The Postal History of Glasgow [1984] | N/A |
| MACKAY (James A) | Arran & Cumbrae [1978] | N/A |
| MACKAY (James A) | Harris & St Kilda [1978] | N/A |
| MACKAY (James A) | Postal History of Dumfries [1986] | N/A |
| MACKAY (James A) | Tristan da Cunha its postal history and philately [1965] | N/A |
| MACKAY (James A) | Registered mail of the British Isles [1982] | Great Britain, Registration |
| MACKEY (John P) | The Saxon post [1978] | N/A |
| MACKIN (M T) | The Gold Coast, the post offices / agencies and their cancellations 1875-1957 [1985] | N/A |
| MACMILLAN (R H) | The Netherlands: selected stamp issues 1852-1939: an anthology [1996] | Netherlands |
| MACRYMICHALOS (Stephen J) | Numbering of the Greek rural cancellation postmarks [including Crete]…with comments on the marks by Ulysees Bellas [1970] | N/A |
| MADDOCKS (R J) | Facets of Cameroun in wartime the cause & effect of postal censorship 1939-45 [1989] | Censorship, France, Military |
| MADDOCKS (R J) | Marking time 1887-1987: a century of postmarks and cachets of an African town Kamerun-Doula [1990] | N/A |
| MADDOCKS (R J) | The postmarks and postal history of the Cameroons under British administration 1916-1961 [1994] | N/A |
| MADELLA (Albert T) | The Cyprus Sea Post Office 1906 – 1932 [2002] | Maritime |
| MAGALHAES (A Guedes de) | Cartas vindas do Brasil pelos paquetes transatlanticos [1977] | Maritime |
| MAGALHAES (A Guedes de) | Marcas postais pre-adesivas de Portugal [1989] | N/A |
| MAILE (Ben) | First post penny black to the present day | N/A |
| MAINOLDI (Francesco) | Le poste di Romagna: posta lettere e posta cavalli a Forli, Cesena, Rimini e San Marino dl XVI alla fine del XIX secolo [1981] | N/A |
| MAINTZ (Ole) | Skibspost til og fra Danmark i midten af 1800-tallet | N/A |
| MAINTZ (Ole) | Danish Postal History and letter post of Copenhagen 1624-1851 [1987] | N/A |
| MAJOR (W) | De helikopterpostdienst in Belgie [1980] | Airmail, Aviation, Belgium |
| MAJOR (W) | La poste aerienne belge 1919-2003: les tarifs postaux internationaux et les surtaxes aeriennes par pays de destination [2003] | Airmail, Aviation, Belgium |
| MAKKAI (E), | Handbook of the Hungarian pre-stamp mail | N/A |
