What is the title of the book by Karen Blumenthal that covers the years between the Eighteenth and Twenty-first Amendments, known as the "Lawless Years of Prohibition"?

The correct title of the book by Karen Blumenthal that discusses the period of Prohibition, often referred to as the "Lawless Years of Prohibition," is "Bootleg." This title captures the essence of the era, highlighting the illegal production and distribution of alcohol that marked this time in American history. Blumenthal's work examines not only the laws surrounding Prohibition but also the societal impact and underground culture that emerged in response to these laws, including the rise of speakeasies and organized crime.

The other titles do not directly refer to this specific historical context. "Prohibition" is a broad term that describes the time period but does not specifically reference Blumenthal's work. "The Great Gatsby" is a novel by F. Scott Fitzgerald that, while set during the Prohibition era, is a fictional narrative and not a direct analysis like Blumenthal's book. "Speakeasy" refers to the illegal bars that flourished during Prohibition but is not the title of any single work by the author in question. Thus, "Bootleg" is the most accurate answer for identifying Blumenthal's exploration of this significant time in American history.