While assessment and feedback tend to be treated separately in the L2 writing literature, this book brings together these two essential topics and examines how effective classroom assessment and feedback can provide a solid foundation for the successful teaching and learning of writing. Drawing upon current educational and L2 writing theories and research, the book is the first to address writing assessment and feedback in L2 primary and secondary classrooms, providing a comprehensive, up-to-date review of key issues, such as assessment for learning, assessment as learning, teacher feedback, peer feedback, portfolio assessment, and technology enhanced classroom writing assessment and feedback. The book concludes with a chapter on classroom assessment literacy for L2 writing teachers, outlines its critical components and underscores the importance of teachers undertaking continuing professional development to enhance their classroom assessment literacy. Written in an accessible style, the book provides a practical and valuable resource for L2 writing teachers to promote student writing, and for teacher educators to deliver effective classroom writing assessment and feedback training. Though the target audience is school teachers, L2 writing instructors in any context will benefit from the thorough and useful treatment of classroom assessment and feedback in the book.