Abstract Harmonic Analysis . Volume 1" by Hewitt E. and Ross K. It is an outstanding work that immerses the reader in the world of mathematical analysis, opening up new horizons for understanding abstract concepts. This publication will become an indispensable assistant for students, graduate students and teachers, as well as anyone interested in the theory of functional spaces and harmonic analysis. In the first volume, the authors offer the reader a detailed study of the basics of harmonic analysis, starting with elementary concepts and ending with more complex topics. They masterfully explain how abstract mathematical constructs can be applied to solve real-world problems. The reader will become familiar with key concepts such as measures, integrals, groups and algebras, which underlie harmonic analysis. Hewitt and Ross not only expound the theory, but also reinforce it with many examples, which makes the material more accessible and understandable. This book will be especially interesting for those who are fond of mathematics at a deeper level, as well as for those who seek to understand how abstract ideas can be applied in various fields of science and technology. Students of mathematical and physical faculties, graduate students, as well as teachers will find in it many useful ideas and methods that can be used in their scientific activities. If you are looking for books on mathematical analysis, function theory or functional analysis, Abstract Harmonic Analysis will be a real find for you. The topics raised in the book cover a wide range of issues, including the properties of functions, their transformations, and interaction with various mathematical structures. The authors emphasize the importance of understanding abstract concepts to further explore more complex topics, such as spectral theory and group theory. This makes the book not only a textbook, but also a real guide to the world of higher mathematics. The style of Hewitt and Ross is distinguished by the clarity and logic of the presentation. They skillfully balance between theoretical calculations and practical examples, which allows the reader not only to assimilate the material, but also to see its application in real-world problems. Their previous works, such as The Theory of Measure and Integral and Harmonic Analysis on Abstract Groups, are also noteworthy and can serve as an excellent addition to the study of the topics addressed in Abstract Harmonic Analysis. Abstract Harmonic Analysis . Volume 1 is not just a textbook, but a real encyclopedia of knowledge that can inspire further research and discovery. It will become a reliable companion for all who seek to deepen their knowledge in the field of mathematics and harmonic analysis. If you want to expand your horizons and immerse yourself in the world of abstract mathematics, this work must take its rightful place on your shelf. Do not miss the opportunity to discover one of the most important books in the field of mathematical analysis Abstract Harmonic Analysis is not just a book, it is the key to understanding complex mathematical concepts that can change your perception of science and its possibilities.