Leonard Tancock (1902–1986) was an eminent translator of French and a renowned scholar. He taught French at University College London and is best known for his translation of classic French literature, including works by Émile Zola, Voltaire, and Guy de Maupassant. -- Penguin Books
Translations

Adolphe
Adolphe by Benjamin Constant
English · Penguin · 1964

The Nun
La Religieuse by Denis Diderot
English · Penguin · 1974

Rameau's Nephen and D'Alembert's Dream
Le Neveu de Rameau ou La Satire seconde by Denis Diderot
English · Penguin · 1976
Maxims
Maximes by François de La Rochefoucauld
English · Penguin · 1979

Pierre and Jean
Pierre et Jean by Guy de Maupassant
English · Penguin · 1979
Letters on England
Lettres philosophiques by Voltaire
English · Penguin · 1980
La Bête Humaine
La Bête humaine by Émile Zola
English · Penguin · 1981

Selected Letters
Lettres by Madame de Sévigné
English · Penguin · 1982
Germinie Lacerteux
Germinie Lacerteux by Goncourt Brothers
English · Penguin · 1984

The Debacle
La Débâcle by Émile Zola
English · Penguin · 1988

Manon Lescaut
Histoire du chevalier des Grieux et de Manon Lescaut by Abbé Prévost
English · Penguin · 2009