Book excerpt: Feedback is often considered to be one of the pivotal enablers of formative assessment. This key topic has received considerable attention within research literature and has been studied by a number of leading experts in the field. This book is positioned at the heart of these debates and offers a specific contribution to ‘exploring’ and ‘exploiting’ the learning gap which feedback seeks to shift. Developing Feedback for Pupil Learning seeks to synthesise what we know about feedback and learning into more in-depth understandings of what influences both the structure of and changes to the learning gap. This research-informed but accessibly written enquiry is at the very heart of teaching, learning and assessment. It offers a timely contribution to understanding what works (and what doesn’t) for whom and why. Split into three main parts, it covers: Feedback for learning in theory, policy and practice; Conceptualising the ‘learning gap’; New futures for feedback. This text will be essential reading for students, teachers, researchers and all those who engage with issues related to teaching, learning and assessment academically.