The specialist book "Document Science" by Michael Hochedlinger offers a comprehensive introduction to the study of documents and records in the modern era. It is aimed at aspiring archivists and historians who deal with the correct naming, identification, and interpretation of modern documents, records, and business books. The volume covers the history of the discipline, provides definitions of terms, and offers an overview of various subfields such as genetic and analytical document science, as well as filing systems used by authorities. A criteria catalog for identifying records and a CD-ROM with practice examples complement the offering. This book is an indispensable tool for source criticism and helps to extract essential contextual information from seemingly marginal features, which are crucial for the substantive evaluation of documents.