'Heinz' Harcourt's Collaborations : Over 57 Varieties

Until Michael and Lal asked me to contribute a chapter to their volume on collaboration I had not realised what a collaborator I was, nor that I was one of so many varieties. Their letter sent me to my CV which led me in turn to classify my joint efforts into categories: of people collaborated and of what forms the collaboration took. The latter includes books co-authored or co-edited; co-authored articles and review articles; notes; reviews; edited volumes of selected essays; and chapters in volumes. If I ignore items accepted but not yet published, I have collaborated 88 times with 103 collaborators. (To add perspective, I have published 29 books and over 360 articles, review articles, notes, chapters in edited volumes and reviews.) In the total are 17 books, two co-authored, 15 co-edited, including three editors of volumes of selected essays, with 22 collaborators; 14 articles involving 17 collaborators; four review articles with four collaborators; 12 notes with 15 collaborators; 33 chapters in books with 37 collaborators; and two reviews with two collaborators