The Mr. Sack series, originally published June 11–July 5, 1973, is the one most often cited by Schulz as a favorite. Charlie Brown, who can think of nothing but baseball awakens one morning not only to see the rising sun as a baseball, but with an affliction that makes his own head look like one too! Donning a paper sack, Charlie Brown leaves home to attend summer camp and becomes a hero, suddenly, with a sack over his head, people start listening to his advice and seeking his approval.