Book 569 Quantitative Micro-X-ray Spectral Analysis . (Methods of calculation of concentrations): training. Dyakonov N . P. , Skakova Yu. A. and Ivanova A. N. It is a unique and valuable source of knowledge for all who are interested in modern methods of analysis in the field of materials science, chemistry and physics. This tutorial is ideal for both students and professionals working in laboratories and scientific institutions where high-precision substance analysis is required. The book discusses the basic principles and methods of quantitative micro-X-ray spectral analysis, which is one of the most effective ways to determine the chemical composition of materials. The authors explain in detail how to use X-rays to detect concentrations of different elements in the samples, making the manual indispensable for those involved in analytical chemistry or physics. One of the key topics raised in the book is the development and application of concentration calculation methods. The authors share their knowledge on how to correctly interpret the results of the analysis, as well as on what factors can affect the accuracy of measurements. This makes the book especially useful for researchers seeking to improve their work and achieve high results in their experiments. Who can like this manual? First of all, it will be interesting for students and graduate students studying at the faculties of chemistry, physics and materials science . The book will also be useful to practitioners in the field of analytical chemistry, engineers and researchers who are looking for new approaches to the analysis and interpretation of data. Thanks to the available language and clear explanations, even those who are just beginning their journey in this area will be able to easily assimilate the material presented. The style of the authors is clear and logical, which allows readers to easily follow their thoughts and apply the knowledge gained in practice. Diakonov, Skakov and Ivanov are experienced scientists who not only know their topic, but also know how to convey it to the reader. Their previous work is also devoted to various aspects of analytical chemistry and physics, which confirms their high level of competence and professionalism. The book "No. 569 Quantitative Micro-X-ray Spectral Analysis" stands out among other textbooks on analytical chemistry for its practical orientation and in-depth analysis of methods that can be applied in real conditions. Not only does it teach theory, but it also offers practical guidelines, making it an ideal assistant for students and professionals. If you are looking for a tutorial that will help you understand the complex issues of quantitative analysis, this publication will become your reliable companion. It will not only expand your knowledge, but also inspire new research and experiments. Do not miss the opportunity to learn more about micro-X-ray spectral analysis and its application in various fields of science and technology!