A catalogue raisonné is a monograph giving a comprehensive catalogue of the work of an artist. A catalogue raisonné may be regarded as the prime source of information about an artist's work, and allows one to see the full range of work in sequence.
The term catalogue raisonné is French, meaning "reasoned catalogue" (ie with arguments for, for example, attributions given) and has wide usage in English. Accordingly, the spelling is never Americanized to "catalog," even in the United States.