Under the guise of E. V. Cunningham, Howard Fast made a remarkable impact on the detective fiction genre, crafting stories that were as socially conscious as they were thrilling. Renowned for his ability to publish two or more works annually, Fast distinguished himself through a unique blend of political commentary and engaging storytelling. His detective novels, in particular, stand out for their exploration of the moral and ethical dilemmas that accompany power and wealth, while simultaneously celebrating the virtues of simplicity and humility.

Cunningham's characters are praised for their authenticity and dynamism, drawing readers into narratives that pulse with action and intrigue. However, it is his steadfast commitment to liberal and humanitarian principles that truly sets his work apart. Through his stories, Cunningham offers a sympathetic portrayal of women as formidable and intelligent figures, often surpassing their male counterparts in intuition and moral reasoning. His novels resonate with readers through their empathetic depiction of cultural outsiders and their critical lens on societal pressures that drive individuals to conform.

Among Cunningham's notable creations is a Nisei detective, a character that serves as a vehicle for the exploration of Zen philosophy. This detective's journey through the labyrinth of materialism and the stark inhumanity of the wealthy provides a compelling narrative framework that enhances the thematic depth of Cunningham's work. Thus, Fast, through his Cunningham pseudonym, skillfully intertwines political insight with captivating entertainment, leaving a lasting legacy in the realm of mystery fiction.