Hybrid learning spaces have become a significant component of the educational landscape in the last two years. A new book, published by Springer, and edited by Einat Gil, Yishay Mor, Yannis Dimitriadis and Christian Köppe, examines the challenges and promises in these spaces from pedagogical, architectural, technological and design perspectives. In this talk I will discuss some of the key insights from the book, and ask: what are hybrid spaces, how do they change our perception of teaching and learning, and why does this make design a critical aspect of our role as educators.