Cathy Lassiter, Ed.D., is an international consultant with over 35 years of combined experience as a public school teacher, principal, central office administrator, and consultant. Her areas of expertise are in Visible Learning, Teacher Clarity, and all aspects of school leadership. Before this role, she held various positions including Executive Director of Middle Schools and Senior Director of Curriculum, Instruction and Staff Development. She also was a successful middle school principal and was named Virginia′s Middle School Principal of the Year. Cathy has served as an adjunct professor at The George Washington University, teaching graduate courses in educational leadership. Douglas Fisher is professor and chair of educational leadership at San Diego State University and a leader at Health Sciences High and Middle College. Previously, Doug was an early intervention teacher and elementary school educator.  He is a credentialed teacher and leader in California.  In 2022, he was inducted into the Reading Hall of Fame by the Literacy Research Association. He has published widely on literacy, quality instruction, and assessment, as well as books such as Welcome to Teaching, PLC+, Teaching Students to Drive their Learning, and Student Assessment: Better Evidence, Better Decisions, Better Learning. Toni Faddis, EdD, is a Corwin author and full-time professional learning consultant. Toni was previously a bilingual teacher and Reading Recovery specialist in elementary and middle schools, as well as a principal in San Diego. In addition, Toni served as a district central office leader responsible for equity, access, and leadership development throughout the largest elementary school district in California. She holds teaching and administrative services credentials in California and earned her doctoral degree in educational leadership from San Diego State University. Toni also mentors and coaches current and aspiring school leaders in the Educational Leadership Department at San Diego State University. Toni is the co-author of PLC+: A Playbook for Instructional Leaders, Collaborating Through Collective Efficacy Cycles, and The Ethical Line. Nancy Frey is professor of educational leadership at San Diego State University and a leader at Health Sciences High and Middle College. Previously, Nancy was a teacher, academic coach, and central office resource coordinator in Florida.  She is a credentialed special educator, reading specialist, and administrator in California.  She is a member of the International Literacy Association’s Literacy Research Panel. She has published widely on literacy, quality instruction, and assessment, as well as books such as The Artificial Intelligences Playbook, How Scaffolding Works, How Teams Work, and The Vocabulary Playbook.