Lewerentz work spans over many decades and across a number of building types, styles, materials and techniques. This width is apparent in Olssons project, which could be labeled as an excavation of Lewerentz architectural remains, both known and unknown, wellpreserved and decayed. This book is also a dialogue between the artist and photographer Mikael Olsson, and the curator and critic Jan-Erik Lundström a dialogue, covering the photographic field, its actors, histories and theories, that began with a series of Zoom conversations between Olsson, Lundström and the editor of this book in 2021.