"What Works in Schools: Translating Research Into Action" by Robert J. Marzano is a textbook published by the Association for Supervision & Curriculum Development in 2003. The book focuses on education and provides insights into professional development, curricula, counseling, aims & objectives, and teaching methods. With 219 pages, Marzano offers practical strategies for educators to improve student outcomes based on research. The book is in English making it a valuable resource for educators looking to enhance their teaching practices.