In this book, the reader will have the opportunity to learn the fundamental principles of computer science as well as their application in the field of information science.

Therefore, topics of computer science are examined such as hierarchical knowledge models, the philosophy of information, computer architecture, categories of modern computers, representation and data structures, databases, the concept of algorithms, software, etc.

Having heard about or having conducted a comprehensive review of the above concepts for the first time, the reader can proceed to the second and third parts of the book, where they will encounter specialized concepts and applications (and not only) related to information systems and libraries.

More specifically, they will have the opportunity to find information about standards (e.g., MARC, RDF, Dublin Core, XML, etc.), technologies (Apache, MySql, SDI, etc.), implementation architectures (client-server, 3-tier, etc.), and key concepts of information organization systems.

In addition, they will delve into Integrated Library Automation Systems and their subsystems, such as cataloging, material circulation, searching, etc. This deepening is framed by a demonstration of the most popular open-source library software, Koha.

Beyond specialized applications, the reader can conclude this cycle of updating on modern developments with a concise description of the most popular office applications, such as Microsoft Word and Microsoft Excel.

Both the structure and the content of the book, throughout its entirety, remain simple and understandable to the average reader. At many points, a series of well-designed images, as well as step-by-step demonstrations of systems and processes, make it even more accessible, regardless of the reader's level of technological familiarity.