A collection of interviews that probe the minds of 20 of the most notable programmers. They highlight the forces, events and the personality traits that influenced today's software movers and shakers - how they approach design, is it a talent?, and how they see the future. Among the interviewees are Andy Hertzfield (Macintosh Operating System), John Warnock (Postscript) and C. Wayne Ratcliff (dBASE).