Book excerpt: In this volume Rozell and Peterson bring together a collection of new essays exploring the unparalleled impact of Franklin D. Roosevelt on the modern presidency. Of all the modern presidents, FDR looms largest. Indeed, most scholars date the origins of the modern presidency to FDR, and many assert that no one since has achieved his level of greatness in office. The essays are organized into two broad sections: The first examines FDR's impact on the creation and development of the administrative presidency and the legacy of the New Deal; the second looks at FDR's legacy to presidential leadership and the exercise of presidential powers. An important volume for scholars and other researchers of the FDR era and the modern American presidency.