What is the primary focus of Bryan Stevenson’s book "Just Mercy"?

The primary focus of Bryan Stevenson’s book "Just Mercy" is indeed the flawed American criminal justice system. Stevenson, a lawyer and advocate for marginalized individuals, highlights the systemic injustices that pervade the legal system, including racial bias, wrongful convictions, and the disproportionate punishment faced by people of color and those from impoverished backgrounds. Through powerful narratives and personal stories, particularly that of Walter McMillian, who was wrongfully convicted of murder, Stevenson reveals the deep-seated issues within the system that often lead to tragic outcomes for the most vulnerable populations. The book serves as both an indictment of these injustices and a call to action for reform, making the central theme the exploration and critique of the criminal justice system's failings.