This core text for the DNP curriculum explores the historical and evolving advanced practice doctoral role as envisioned by leading DNP scholars and educators. Its distinctive point-counterpoint format—consisting of commentaries that dispute or support the opinions of chapter authors–provides a foundation of varying opinions that stimulate vigorous critical dialogue. The second edition has been revised to examine the latest developments in the ongoing evolution of doctoral-level roles along with the specific skills that advance these roles. With six completely new chapters, the second edition provides essential content on role theory, examines the meaning of nursing roles, and addresses their continued evolution in a variety of arenas.