Celebrating the 20th anniversary of Scott Adams's "Dilbert," the touchstone of office humor, this special slipcased collection--weighing in at more than 10 pounds with 600 pages and featuring almost 4,000 strips--is divided into five different epochs personally selected by the author. Also included is a piracy-protected disc that contains every "Dilbert" comic strip to date and that can be updated as new cartoons are released.