introduces the author's personal motivations for compiling this comprehensive exploration of Dutch surnames. Winkler expresses his surprise at the lack of scholarly attention given to the subject by his fellow countrymen and enumerates the various sources he consulted to gather relevant information. He outlines the evolution of personal names into surnames, detailing the transition from single names in ancient times to the patronymic systems common in Germanic cultures. Additionally, Winkler establishes the framework for the subsequent sections of the book, which will categorize names based on their origins, including references to geographical locations and professions. (This is an automatically generated summary.)