DENT'S collected edition ( 1946-55) contained almost all Conrad's works except for the dramatizations and some minor items. Congo Diary and Other Uncollected Pieces, edited by Zdislaw Najder ( 1978) contains the Congo notebooks, the fragment called The Sisters, The Nature of a Crime written in collaboration with Ford Madox Hueffer (later Ford Madox Ford) and other writings. Cambridge University Press is currently publishing a critical edition of the canon, starting with The Secret Agent and Almayer's Folly.
The Collected Letters of Joseph Conrad, edited by Frederick R. Karl and Laurence Davies, began appearing in 1983. Other important editions are as follows: Joseph Conrad: Life and Letters, by G. Jean-Aubry ( 1927); Letters from Joseph Conrad, 1895-1924, ed. Edward Garnett ( 1928); Letters of Joseph Conrad to Marguerite Poradowska, ed. and trans. John A. Gee and Paul J. Sturm ( 1940); Joseph Conrad: Letters to William Blackwood and David J. Meldrum, ed. William Blackburn ( 1958); Conrads' Polish Background: Letters to and from Polish Friends, ed. Zdislaw Najder ( 1964); Joseph Conrads' Letters to Cunningham Graham (1969), ed. C. T. Watts. There are further collections edited by Richard Curie ( 1928), G. Jean-Aubry ( 1929), Rene Rapin ( 1966) and Dale B. J. Randall ( 1968).
The most important memoirs are those by Jessie Conrad ( 1926 and 1935), Richard Curle ( 1928), and Ford Madox Ford ( 1924), and there are further memoirs by Borys Conrad ( 1970) and John Conrad ( 1981). Owen Knowles's chronology ( 1989) and Martin Ray's collection of interviews and recollections ( 1990) are helpful reference works. Documents related to Conrad's Polish experience and relations are collected in Zdislaw Najder (ed.), Conrad under Familial Eyes ( 1983).
The most reliable and scholarly biography is Zdislaw Najders' Joseph Conrad: A Chronicle ( 1983). There are critical biographies by Jocelyn Baines ( 1960), Bernard Meyer (a 'psychoanalytic biography', 1967), Frederick Karl ( 1979), and Jeffrey Meyers ( 1991). The most recent critical biography is John Batchelor The Life of Joseph Conrad: A Critical Biography ( 1994). There are further recommended biographies and biographical studies by J. D. Gordan, Joseph Conrad: The Making of a Novelist ( 1941), Norman Sherry, Conrad's Eastern World ( 1966) and Conrad's Western World ( 1971), Ian Watt, Conrad in the Nineteenth Century ( 1980), Roger Tennant ( 1981) and Cedric Watts ( 1989).