This volume in the Greenwood Press series, Bio-Bibliographies in Music, provides new details about the life and works of Polish composer Witold Lutoslawski. It includes a detailed catalogue of the composer's works and performances, including his film music, incidental music for the theatre, music for radio plays, and songs he composed under a pseudonym, as well as a bibliography, discography, and brief biographical sketch. His unique style was distinguished by an individual harmonic system controlled aleatory technique that he developed more fully during the 1960s and 1970s. The discography includes over 300 recordings and the bibliography includes writings the composer and a separate section for the writings about him, including concert and recording reviews, books, articles, dissertations, and interviews. This research tool will appeal to Lutoslawski fans and to musicologists. Each section is cross-referenced throughout. An appendix provides an alphabetical list of all of the composer's works.