Doonesbury is a comic strip by American cartoonist Garry Trudeau that chronicles the adventures and lives of an array of characters of various ages, professions, and backgrounds, from the President of the United States to the title character, Michael Doonesbury, who has progressed from a college student to a youthful senior citizen over the decades. Created in "the throes of '60s and '70s counterculture," and frequently political in nature, Doonesbury features characters representing a range of affiliations, but the cartoon is noted for a liberal viewpoint. The name "Doonesbury" is a combination of the word doone (prep school slang for someone who is clueless, inattentive, or careless) and the surname of Charles Pillsbury, Trudeau's roommate at Yale University. Doonesbury is written and pencilled by Garry Trudeau, then inked and lettered by his assistant Don Carlton.