| MAYEUR (Jean) | Les marques d’arrivee avant 1830 [1986] | N/A |
| MAYNE (Richard) | Mailships of the Channel Islands 1771-1971 [1971] | Maritime |
| MAYR (Leopold) | 615 postmarks of the Guernsey head post office (& a few relating to Guernsey) [1990] | N/A |
| MAZUMDAR (Mohini Lal) | The Imperial post offices of British India (1837-1914) [1990] | N/A |
| MCCAIG (Colin) | The postal history and handstamps of British West Africa [1978] | N/A |
| MCCANN (Peter P) | The postal history of the Cayman Islands | N/A |
| MCCLOY (B M) | Seychelles: the cancellations and instructional markings 1860-1980 [1980] | N/A |
| MCCloy (Brian) | The railways of Finland and their postal service | Railways |
| McCULLOCH (A) | The Postal History of North-Eastern Rhodesia [2011] | N/A |
| MCKENZIE (Donald) | The Red Cross mail service for Channel Islands civilians 1940-1945 [1975] | Military |
| MCLAUGHLIN (E) | Reading old handwriting (3rd edition) [1999] | N/A |
| MCLOY (BM) | Seychelles. Postal history and postage stamps to 1976 | N/A |
| MCNAMARA | A historical review of McNamara’s…to mark the company’s centenary 1837-1937 [1937] | N/A |
| MCQUEEN (Ian) | Airmail directional handstamps (a study), 2 vol [2003] | Aviation |
| MCQUEEN (Ian) | Jusqu’a airmail markings (a study) [1993]; Supplement [1995] | Aviation |
| MEECH (ALAN) | An annotated bibliography of Burma philately [1993] | N/A |
| MELON (Prodomos) | Contribution to the postal history of the Ottoman post offices of Dodecanese [1991] | N/A |
| MELROSE (Dr WM) & WRAITH (N.J.P.) | The Parcel Post of the United Kingdom including Crown Dependencies (Vol. 1) [2021] | N/A |
| MELVILLE (Fred J)] | Army postmarks 1914-15 [1915] | Military |
| MELVILLE (Fred J)] | Jamaica [1910] | N/A |
| MELVILLE (Fred J)] | Origins of the penny postage [1930] | Rowland Hill |
| MENTGEN (G) | Postal markings Somaliland Protectorate 1903-1960 [1997] | N/A |
| MEREDITH (C W) | Scots local cancellations: a history of the their usage, types and degrees of rarity 2nd edition [1963] | Great Britain, Local, Scotland |
| MEREDITH (C W) | Scots local cancellations illustrated 1854-1860 | Great Britain, Local, Scotland |
| MEREDITH (C W) | A Christmas story. Light is shed on the ‘Posted in Advance’ scheme for delivery on Christmas Day 1902-9 [1954] | N/A |
| MESCHENMOSER (Alfred | Die zeit des behordenpostverkehrs in der franzosischen zone [1994] | N/A |
| MESCHENMOSER (Alfred) | Die franzosische feldpost in Deutschland 1945 bis 1955 [1994] | Military |
| MESSENGER (J L) | St Vincent. The postal history 1762-1965: the postage stamps 1861-1897; The cancellations & handstamps 1861-1915; the Revenue stamps 1882-1897 [1971] | N/A |
| METCALFE (J E) | James Chalmers inventor of the adhesive postage stamp: a short summary of the invention… | N/A |
| MEYER (K F) | Disinfected mail [1962] | Disinfection |
| MICHALOVE (Peter A) | Postal censorship in Imperial Russia, 2 vol | Censorship, Russia |
| MICHEL | Handbuch-Katalog Deutsche feldpost 1937-1945 [1986] | Military |
| MICHELE (Giovanni) | Le tariffe postali italiane 1862-2000; repertorio de fonti legislative e normative nei testi integrali, 6 vol [2000-01] | N/A |
| MIDLAND (GB) POSTAL HISTORY SOCIETY | The local posts of the Midland Counties to 1840 [1993] | Great Britain, Local |
| MIDLAND (GB) POSTAL HISTORY SOCIETY | The Midland counties mileage marks and mail routes to London 1784-1840 [2005] | N/A |
| MIDLAND (GB) POSTAL HISTORY SOCIETY | The undated circular marks of the Midland Counties 3rd edition [1989] | N/A |
| MIDLAND (GB) POSTAL HISTORY SOCIETY | The undated straight line and numbered receiving house marks of the Midland Counties 1840-1860 [1988] | N/A |
| MIDLANDS (GB) POSTAL HISTORY SOCIETY | The British County Catalogue of Postal History – Midlands Edition [2013] | N/A |
| MIGLIAVACCA (A) | Italian POW and Internees in Africa [1980] | Internees, Military, POW |
| MIGLIAVACCA (G) | History of the Posts in Italy [2017] | Italy |
| MIGLIAVACCA (Georgio) | A concise postal history of Persia [1986] | N/A |
| MIGLIAVACCA (Georgio) | Documentation revealed: the post & courier service of early modern Italy [1986] | Italy |
| MIGLIAVACCA (Georgio) | A fascinating saga: the postal history of Lombardy under Austrian rule, 1707-1796 [1985] | N/A |
| MIGLIAVACCA (Georgio) | Simone Tasso: Gran Maestro di Osti, Poste e Corrieri dello Stato di Milano [1982] | N/A |
| MIKULSKI (Z) | The Kingdom of Poland 1858-1870 [2001] | N/A |
| MILGRAM (J W) | Abraham Lincoln Illustrated Envelopes and Letter Paper 1860-1865 [1984] | Stationery |
| MILGRAM (James W) | Federal Civil War Postal History [2007] | Military |
| MILITARY POSTAL HISTORY SOCIETY | United States Numbered Military Post Offices – Assignments and Locations 1941-1994 [1994] | Military |
| MILLER (Jerry H) | From Hinrichsen to Krag: The experimental & early Machine Postmarks of Germany 1866-1906 [2008] | Mechanisation |
| MILLINER (John H) | The undated circular marks of Somerset & Dorset [1992] | N/A |
