Investigating University-School Partnerships: A Volume in Professional Development School Research, the fourth book in the PDS Research Series developed by the same editors, includes a collection of organized papers that represent the best and latest examples of practitioner thinking, research, and program design and evaluation in the field at the national level. A wide variety of authors from the professional community of PDS researchers, practitioners, and other stakeholders engage the reader in research or case studies that foreground real-life, authentic contexts, which, in turn, are designed to generate and fashion more questions and ideas. The volume's contents of 26 chapters is divided into five areas: (1) PDS Evaluation (2) Teacher Research and Inquiry, (3) PDS Stakeholders' Studies, (4) Studies for Thought — Ideas for Development, and (5) Teaching Content Areas in PDSs. As a whole, the volume of papers maintains a consistency within a cohesive undercurrent that illustrates the spirited and visionary purpose of professional development schools to advance educational reform that leads to substantive change.