Leon Norman Williams originally a barrister

Barrister

A barrister is a member of one of the two classes of lawyer found in many common law jurisdictions with split legal professions. Barristers specialise in courtroom advocacy, drafting legal pleadings and giving expert legal opinions...

, was a noted British philatelic

Philately

Philately is the study of stamps and postal history and other related items. Philately involves more than just stamp collecting, which does not necessarily involve the study of stamps. It is possible to be a philatelist without owning any stamps...

 writer, who collaborated with his brother Maurice as "L. N. and M. Williams" until Maurice's death in 1976.

The collaboration began in 1934 with magazine articles. In 1980 the brothers were elected to the Philatelic Writers Hall of Fame of the American Philatelic Society

American Philatelic Society

The American Philatelic Society is the largest nonprofit stamp collecting and organization of philately in the world, with almost 44,000 members from 110 countries...

, and in 2000 Norman became a member of the APS Hall of Fame.

Together they succeeded Fred Melville

Fred Melville

Frederick John Melville was a British philatelist, prolific philatelic author and founder of The Junior Philatelic Society. He was also a founder in 1907 of the Philatelic Literature Society...

 as editors of the National Philatelic Society

National Philatelic Society

The National Philatelic Society is one of two national philatelic societies in Great Britain. The other is the Royal Philatelic Society London.- History :...

's journal The Stamp Lover (1940-1954) and they also edited The British Philatelist (1940-1954). They started The Cinderella Philatelist in 1961, which Norman continued after his brother's death.

Joint Publications

• The "Propaganda" Forgeries (1938, their first book form collaboration)
• Catalogue of the Philatelic Library formed by the late Sir Edward Denny Bacon
  Edward Denny Bacon
  Sir Edward Denny Bacon was a British philatelist who helped the enlargement and mounting of collections possessed by rich collectors of his time and became the curator of the Royal Philatelic Collection between 1913 and 1938.- Early life :Edward Bacon was the son of a malt producer of London,...
  
  , K.C.V.O. (1939) - compilers of a sale catalogue
• Philately (1939)
• Famous Stamps (1940)
• A "Melville" Bibliography (1941)
• The W. J. Webster Collection (1941)
• Pioneer Stamp Album (1941)
• More Famous Stamps (1942)
• Priced Catalogue of Local Postage Stamps with Erik F. Hurt (1942); supplement issued in 1948.
• Stamp Anniversaries (1943)
• Stamps for All (1943)
• Stamps of Fame. London: Blandford Press, 1949.
• Stamps Day by Day (1950)
• Postage Stamps (1950, Penguin) - a "Puffin Picture Book"
• Handbook of the Private Local Posts (1950 - essentially a revision of Priced Catalogue of Local Postage Stamps). Vol. VI of Fritz Billig's Specialized Catalogues
• Stamp Collecting for Boys & Girls (1950)
• Collecting Postage Stamps (1950)
• A Century of Stamp Production (1952)
• Basic Philately (1952)
• Forged Stamps of Two World Wars (1954)
• Fundamentals of Philately (edited by David Lidman, serialized in The American Philatelist 1954-1963; first published in five separate sections beginning in 1958 then in complete book form 1971. The 1990 edition was revised by Norman alone)
• The Postage Stamp: Its History and Recognition (1956, Penguin); a Japanese translation was published in 1958
• Know Your Stamps (1956) - Expanded edition of Stamps for All
• Stamp Collector's Almanac (1957)
• The Satellite Album (1961)
• Hotel Posts of Hungary & Roumania (1962)
• Rare Stamps (1967)
• Cinderella Stamps (1970)
• Illustrated Teach Yourself Stamp Collecting
• Commemorative Postage Stamps of Great Britain
• Techniques of Philately

Norman alone also produced

• Encyclopedia of Rare and Famous Stamps, (Part I 1993, Part II 1997)
• "Philately 100 Years Ago" in Stamp Collecting (1981)