The book Ingressi Milanesi, designing the in-between presents a graphical and photographic analysis of twenty well chosen entrance halls in Milanese condomini or apartment buildings, located in the Magenta and Sempione district and built between 1920 and 1970. A carefully chosen graphic expression helps to discover underlying similarities. The book concludes by bringing together elements of various uses in order to point to recurring elements and ultimately, design principles. The book is based on the research of Lisa Desager and Lisa Janssens at the Department of Architecture and Urban Planning of Ghent University. “Lisa Desager and Lisa Janssens' recognition and their analytic work is a precious work, not only because it contributes filling a lacuna given the scarcity in studies of this topic (for which great interest has been raised only recently) but even more so because of the scientific approach in studying the articulation of spaces and their 'modelling'. This work is, if not the first, surely one of the most in-depth analysis from the point of view of the study of architecture and its spatial inventions.”Francesca Picchi, architect and writer, Milan