This book discusses the technological developments achieved by distinguished figures in the history of mechanism and machine science (MMS). This is the fifth volume of a series of books which gathered contributions on the leading scientists in the field. This book focuses specifically on the IFToMM community and its activities over the last 50 years, showcases who-is-who in MMS, and emphasizes—together with the previous books of the series—the significance of MMS through time. Each chapter recognizes persons whose scientific work resulted in relevant technical developments in the historical evolution of MMS within IFToMM. Biographical notes describing the efforts and achievements of these persons are included as well, but a technical survey is the core of each chapter, offering a modern interpretation of their legacy.