The characters of the Doonesbury universe navigate the evolving social and political landscape of 1970s America. Mike Doonesbury, Phred, and Zonker serve as the primary conduits for the author's commentary on the era's cultural shifts. The narrative follows their individual efforts to maintain personal integrity while confronting institutional failures and societal contradictions. Presented through a daily comic strip format, the work utilizes a non-linear, episodic structure to capture the absurdity of the contemporary political climate.

Readers frequently highlight the sharp, observational humor that defines the Doonesbury series. Discussion often centers on how the author balances specific political critiques with the ongoing development of his core cast. Critics note that the pacing remains consistent with the daily strip format, allowing for both quick gags and long-form character arcs. The work is recognized for its ability to capture the zeitgeist of its time through a blend of cynicism and humanism. Many fans appreciate the consistency of the character voices across decades of publication.