Erskine May

Thomas Erskine May's guide to parliamentary practice is properly entitled 'A treatise on the law, privileges, proceedings and usage of Parliament' but it is commonly referred to as Erskine May (or simply 'May'). It is generally held to be the most authoritative reference book on parliamentary procedure.

First published in 1844, when May was Clerk of the House of Commons, it is now in its 24th edition.

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