"Visible Learning into Action: International Case Studies of Impact" by John Hattie is a textbook published by Routledge in 2015. This hardcover book focuses on the subject area of education and covers topics including curricula, learning styles, and teaching methods. With 330 pages, this text provides insights and case studies from different countries on how to improve learning outcomes in education. Written in English, this book is a valuable resource for educators looking to apply visible learning principles in their classrooms.