In this book you will find many valuable concepts and examples of the latest digital technologies that are transforming our world at an extremely rapid pace. Before you start reading, you should be aware of one important point regarding the fourth industrial revolution and the many breakthrough technologies and inventions behind it. Well, many of these new technological solutions are currently in the process of defining their possible applications, and there are major changes in their field almost every day. Therefore, what we write about them today may be out of date tomorrow. We live in times of dynamic development and constant discoveries, so it is better to assume that the current state of affairs will not last for long. However, reading this book will give you a general idea of what changes we are already dealing with and what changes seem most likely in the future. However, in order to stay up to date with the world's developments, you must carefully follow the latest information.