 The compensation structure of crosswords generally entails authors selling all rights to their puzzles upon publication, and as a result receiving no royalties from republication of their work in books or other forms.This system has been criticized by American Values Club crossword editor Ben Tausig, among others.Software that aids in "creating" crossword puzzles has been written since at least 1976; one popular example was Crossword Magic for the Apple II in the 1980s.