The Stupids are a fictional family created by Harry Allard and James Marshall who appear in series of books by them. The Stupids draw their humor from the fact that they are incompetent to the point of confusing the most simple concepts and tasks. The Stupids series of books rank number 26 on the American Library Association's list of 100 Most Frequently Challenged Books of 1990–2000. Challengers of the books claim that they describe families in a derogatory manner and may encourage children to be disobedient. They also claim that they promote low self-esteem and negative behavior.