| SPEEKAERT (Tony) | Russische postzensur / Russian postal censorship 1914-1918 with four supplements [1990 – 2007]] | Censorship, Russia, WW1 |
| SPEIRS (D) | The History of Mail Bombs: A Philatelic & Historical Study [2010] | N/A |
| SPENCER (F) | Sub office single ring datestamps of Cumbria [1996] | N/A |
| SPERATI (Jean de) | Catalogue of the exhibition in which the British Philatelic Association reference collection of the reproductions is compared with the genuine stamp [1954] | N/A |
| SPIERS (D) | The History of Mail Bombs, A Philatelic & Historical Study [2010] | N/A |
| SPINETTO (Julio Ricardo) | Historia postal de la tripulacìon del acorazado Admiral Graf Spee (Argentina Diciembre 9 [to] Alemania, | N/A |
| SPONG (Colin) | Madagascar – Rail & Mail Services [2003] | Railways |
| SPRATT (H Philip) | Transatlantic paddle steamers [1951] | Maritime |
| STAFF (Frank) | The Picture Postcard and its origins [1966] | N/A |
| STAFF (Frank) | The Valentine and its Origins [1969] | N/A |
| STAFF (Frank) | The transatlantic mail [1956] | Maritime |
| STAFF (Frank) | The Penny Post 1680-1918 [1964 & 1992 editions] | N/A |
| STAGG (E C W) | Sudan postal markings 1867-1970 [1974] | N/A |
| STAMMERS (Michael K) | The passage makers: the history of the Black Ball Line of Australian Packets 1852-1871[1978] | Maritime |
| STAMP WORLD LONDON 90 | Souvenir handbook, coordinating editor John Sussex [1990] | N/A |
| STANGE (Klaus) | Irische postamter und ihre stempeltypen 1600-1990. Irish post offices and their postmarks 1600-1990 | N/A |
| STANLEY GIBBONS PUBLICATIONS Ltd | Specialised catalogue of stamps and postal history [1979 & 1983] | N/A |
| STANLEY GIBBONS PUBLICATIONS Ltd | Collect Channel Islands stamps: a…checklist of the stamps & postal history of the Channel Islands 3rd edition [1974] | N/A |
| STANWAY (L C) | Mails under London – The story of the carriage of the mails on London’s undergorund railways [1999] | Railways |
| STARNES (Charles J) | United States letter rates to foreign destinations 1847 to GPU-UPU [1989] | N/A |
| STARTUP (R M) | New Zealand and Dependencies: A Philatelic Bibliography | N/A |
| STARTUP (Robin M) | New Zealand parcel post labels, cards & forms: a study of New Zealand Post Office parcel post stationery 1887-1987 [2003] | N/A |
| STARTUP (Robin M) | History of the New Zealand military postal services 1845-1991 [1992] | Military |
| STARTUP (Robin M) | Wartime airmails: the trans-Pacific route 1942-1945 [1997] | Aviation |
| STARTUP (Robin M) | New Zealand Post Offices: an alphabetical list of every post office and telephone/graph office [1967 &1993] | N/A |
| STARTUP (Robin M) | New Zealand post offices | N/A |
| STARTUP (Robin M) | The mails went through: the story of New Zealand’s armed forces postal services…1939-1949 [1957] | Military |
| STARTUP (Robin M) | Korean War: NZ military postal services 1950-1957 [1957] | Military |
| STEICHELE (Anton) | The foreign post offices in Palestine 1840-1918. 2 vols [1990 – 91] | N/A |
| STEICHELE (Anton) | The Ottoman post and telegraph offices in Palestine and Sinai; translations by Ernest C Sterne | N/A |
| STEIG (C L ) | Franked! The Official Mail of Victoria 1864-1902 [2008] | N/A |
| STEINHART (Allan L) | The postal history of the post card in Canada 1872-1911 [1986] | N/A |
| STEINMAYER (Friedrich) | Deutsche Schiffspost nach 1945, [1986] | Maritime |
| STEINWASSER (Fritz) | Berliner post: ereignisse und denkwurdigkeiten seit 1237 | N/A |
| STENBERG (Karl-Erik) | Suomen vanhimmat paikkakuntaleimat / The early postmarks of Finland… | N/A |
| STEPHAN (Herbert) | Spezialktalog: Notmassnahmen in Osterreich 1945-1948 [1994] | N/A |
| STEPHEN (Leslie) | Life of Henry Fawcett [1886] | N/A |
| STEPHEN (W S E) | Stamps of the Russian empire used abroad Pt 1-6 in 1 vol | Russia |
| STEPHEN (W S E) | Austrian post offices abroad, 7 pts | N/A |
| STEPHENS (P M) | The Scots local namestamps 1840-1860. [1994] | Great Britain, Local, Scotland |
| STERN (M F) | The airposts of South Africa 1911-1956 [1957] | N/A |
| STES (Dr J) | Essais de Belgique [2009] | Belgium |
| STEUER (Friedrich F) | Handbuch und katalog der deutschen Kolonial [1985] | N/A |
| STEVEN (Werner) | Zusammenstellung der portosatze fur die correspondenz mit dem ausland: Taler wahrung 1846-1875 [1985] | N/A |
| STEVEN (Werner) | Auslandstarife fur die brief- und paketpost 1875-1900 [1986] | N/A |
| STEVENSON (W Iain) | ‘The man for the post’: Henry Fawcett and postal reform [2001] | N/A |
| STEVENSON (W Iain) | An introduction to French machine cancellations [2000] | Mechanisation |
| STEWART (R S C) | Village postmarks Malta [1975] | N/A |
| STIBBE (Jacques) | Dictionnaire des bureaux de poste de Belgique 1830-1914 [1964] | Belgium |
| STICH (Dr H F) | Postwar years of Germany 1945-1947 postal history [1994] | N/A |
