Death Penalty Cases presents significant verbatim excerpts of death-penalty decisions from the United States Supreme Court. The first chapter introduces the topics discussed throughout the book. It also includes a detailed history of the death penalty in the United States. After this introduction, the remaining eighteen chapters are divided into five parts: Foundational Cases, Death-Eligible Crimes and Persons, The Death Penalty Trial, Post-Conviction Review, and Execution Issues.

The first part, consisting of five chapters, talks about the mandatory death penalty, mitigating evidence and racial bias. The next part covers death-eligible crimes, such as rape and other crimes that do not involve homicide and murder. The middle part presents the trial process, from choosing the appropriate decision-makers through the sentencing decision. Followed by this is a chapter focusing on the aftermath of conviction, such as claims of innocence. The book concludes by exploring issues related to execution, such as not executing insane convicts. Finally, execution methods are presented.