An End-User's Guide to Data Base by James Martin1981 This book is a practical introduction to database systems aimed at non-technical users who need to interact with, query, and understand databases without deep programming knowledge. James Martin focuses on making database concepts accessible to business professionals, managers, and general users. The text begins with fundamental concepts such as what a database is, how data is organized, and the advantages of database systems over traditional file-based approaches. It explains key structures like records, fields, and files, and introduces the idea of relational databases in a simplified manner. A significant portion of the book is devoted to how end-users can work with databases effectively. Topics include: Querying data using user-friendly languages and toolsGenerating reports and retrieving meaningful informationUnderstanding data relationships and basic data modelingMaintaining data accuracy and consistency Martin also discusses the role of database management systems (DBMS) and how they support business operations, decision-making, and information management. He emphasizes usability, showing how non-programmers can leverage databases for everyday tasks.