The Paul R. Halmos – Lester R. Ford Award (formerly known as the Lester R. Ford Award) is a $1,000 prize given annually by the Mathematical Association of America for authors of articles of expository excellence published in The American Mathematical Monthly or Mathematics Magazine. It is awarded to at most four authors each year. The prize was established in 1964 as the Lester R. Ford Award to honor the contributions of mathematician and former MAA president Lester R. Ford. In 2012 the award was renamed the Paul R. Halmos – Lester R. Ford Award to honor the contributions of former The American Mathematical Monthly editor Paul R. Halmos and the support of the Halmos family for the awards. Halmos himself received the award in 1971 and 1977. Source: Wikipedia (en)