Nurse Theorists: Portraits of Excellence & Excellence in Action In the Portraits of Excellence series, each video explores the life work and stories of nurse theorists through interviews in which the theorist discusses their life, the evolution of their work, and the impact of their work on nursing practice, research and education. In the Excellence in Action series, each video presents information on a theory, gives case study examples to show the application of a theory, and concludes with a discussion summarizing and synthesizing the theory and application