colleagues. Long Description Herbert Simon (1916-2001), in the course of a long and distinguished career in the social and behavioural sciences, made lasting contributions to many disciplines, including economics, psychology, computer science and artificial intelligence. In 1978 he was awarded the Nobel Prize in economics for his research into the decision-making process within economic organisations. His well-known book The Sciences of the Artificial addresses the implications of the decision-making and problem-solving processes for the social sciences. This book (the title is a variation on the title of Simon's autobiography, Models of My Life) is a collection of short essays, all original, by colleagues from many fields who felt Simon's influence and mourn his loss. Mixing reminiscence and analysis, the book represents "a small acknowledgement of a large debt." Each of the more than forty contributors was asked to write about the one work by Simon that he or she had found most influential. The editors then grouped the essays into four sections: "Modeling Man," "Organizations and Administration," "Modeling Systems," and "Minds and Machines."