"Algebraic Number Theory" by Jürgen Neukirch provides a comprehensive introduction to algebraic number theory, based on modern concepts of arithmetic algebraic geometry. The book aims to clarify existing discrepancies in textbook literature and is suitable for both beginners and advanced students. It addresses classical concepts from the perspective of Arakelov theory and offers a rich presentation of class field theory, supplemented by numerous examples and suggestions for further study. A standout feature of the book is the concluding chapter on zeta functions and L-series, which underscores the theoretical depth and relevance of the work. This textbook is a valuable resource for anyone interested in algebraic number theory and offers a systematic and thorough treatment of the subject.