Leos Janácek (1854--1928) is one of the few great opera composers of the twentieth century; his operas, orchestral, chamber, and vocal works are all part of the international repertory. This catalogue is by far the most comprehensive to appear in any language, with up-to-date and reliable information on all his works. Each entry provides detailed information on date of composition (and shows on what basis dating has been arrived at); source of text or programme; performing forces; duration; manuscripts and their locations; publication (a complete listing); performances and productions; dedication; literature. A special feature is the explanation of terms which may be unfamiliar to the western reader such as 'Glagolitic', 'Varyto', 'Lachian', and 'Indian Club Swinging'. This catalogue is also the first to include a complete, annotated list of the composer's varied and extensive writings.