Thanks to all of the people in the Lisp community who have made it possible for me to produce this, my first book. Over the years, members of the Usenet newsgroup comp.lang.lisp have provided sage advice, patient tutorials, historical insight, food for thought, and (perhaps unintentionally) amusement. Thanks especially to Barry Margolin, Kent Pitman, Erik Naggum for their contributions to the ongoing dialog, and to Howard Stearns and Mark Kantrowitz for their stewardship of community resources.