Regulation (EU) No 531 / of the European Parliament and of the Council of 13 June 2012 on the roaming of public mobile networks in the pre” is an important document that has become the basis for significant changes in the field of mobile communication in Europe This regulation, developed by the team of authors, not only describes the rules and conditions for the use of mobile communication in roaming, but also reflects the European Union's desire to ensure consumer protection and create a single space for mobile communication among member countries. The book focuses on issues related to mobile roaming, which has long been a source of not only convenience, but also significant financial costs for users. Regulation 531/2012 was a landmark step towards lowering prices for mobile services abroad, which made travel in Europe more affordable and comfortable. The authors consider in detail the mechanisms that have been introduced to protect the rights of consumers, including restrictions on tariffs and obligations of telecom operators. This book will be interesting to a wide range of readers .. First of all, it will be useful for those who actively use mobile technologies and often travel to the countries of the European Union. Students who study law and economics will be able to find valuable materials for their studies in it. It will also be useful for telecommunications professionals, lawyers and consumer protection professionals who want to better understand how telecommunications services are regulated in Europe. The topics raised in the book cover not only the technical aspects of mobile communication, but also the social and economic consequences of the introduction of new rules. The authors analyze how changes in legislation have affected the mobile market, how they have affected consumer habits and what new opportunities have opened up for users. In this context, the book raises important questions about the balance between business interests and consumer rights, as well as how regulators can effectively respond to rapidly changing market conditions. The style of the authors is distinguished by clarity and accessibility, which makes complex legal and economic concepts understandable to a wide audience. This is especially important in the context of such a specific topic as the regulation of mobile communications. The book is replete with examples and illustrations, which allows readers to better absorb the material and see its practical application. The team behind this regulation includes experts in law, economics, and telecommunications, giving the book added value. Their experience and knowledge make this work not only informative, but also relevant, given the constant changes in technology and legislation. If you are looking for literature that will help you understand the intricacies of mobile communications in Europe, understand how roaming works and what rights you have as a consumer, then this book will be an indispensable source of information. It can also be of interest to those who want to monitor the development of telecommunications legislation and its impact on everyday life. In conclusion, "Regulation of the European Parliament and of the Council 531/2012 of 13 June 2012. Roaming Public Mobile Networks in Pre is not just a legal document, but an important step towards creating a fairer and more affordable mobile market in Europe. This book will be a useful tool for anyone who wants to be aware of current trends and changes in this area.