Ann Lieberman is an emeritus professor from Teachers College, Columbia University, and was a senior scholar at the Carnegie Foundation for the Advancement of Teaching. She is now a senior scholar at Stanford University. Her recent books include Teachers in Professional Communities: Improving Teaching and Learning (with Lynne Miller) and How Teachers Learn to Lead (with Linda Friedrich). Her unique contribution has been the ability to go between school and university, embracing the dualities that plague the field—theory/practice; process/content; intellectual/social-emotional learning; policy/practice—thereby helping to build a more comprehensive understanding of teachers and schools and what it will take to involve them in deepening their work. In doing this, she has fashioned a way to be both a scholar and an activist, a practitioner and a theoretician.