Building in the existing fabric, requiring more than pragmatism and style, is in itself a design practice. Adaptive reuse of buildings, where changes in the structure include the introduction of new programs and function, poses the fundamental question of how the past should be made present in the design for the future. On the background of long years of teaching and publishing, and using vivid imagery that ranges from Frankestein to Rem Koolhaas and beyond, the author provides a comprehensive introduction to architectural design for adaptive reuse project.