The Center for Research in Educational Policy (CREP) has conducted educational evaluations and research throughout the country. In that capacity we have had the opportunity to work many times with the Collaborative for Teaching and Learning (CTL) from Louisville, Kentucky. They are consummate professionals and bring a great deal of knowledge and experience to their work. Additionally they are excellent collaborators. CREP’s experience with CTL has been rewarding and gratifying. We applaud their commitment to quality educational opportunities for students and teachers.