This section provides an overview of the Graduate Texts in Mathematics series, specifically focusing on the book "Algebraic Number Theory" by Serge Lang. The book is part of the series Graduate Texts in Mathematics, Volume 110, and is edited by F. W. Gehring, P. R. Halmos (Managing Editor), and C. C. Moore. Lang's book covers classical algebraic and analytic number theory, including class field theory, and supersedes his earlier work "Algebraic Numbers." The content is divided into three parts: General Basic Theory, Class Field Theory, and Analytic Theory. Each part includes detailed chapters on topics such as algebraic integers, completions, cyclotomic fields, ideal functions, ideles and adeles, zeta functions, and L-series. The book also includes proofs of the functional equation for the zeta function and the Brauer-Siegel theorem, and provides a comprehensive treatment of the subject, suitable for advanced undergraduate and graduate students in mathematics.This section provides an overview of the Graduate Texts in Mathematics series, specifically focusing on the book "Algebraic Number Theory" by Serge Lang. The book is part of the series Graduate Texts in Mathematics, Volume 110, and is edited by F. W. Gehring, P. R. Halmos (Managing Editor), and C. C. Moore. Lang's book covers classical algebraic and analytic number theory, including class field theory, and supersedes his earlier work "Algebraic Numbers." The content is divided into three parts: General Basic Theory, Class Field Theory, and Analytic Theory. Each part includes detailed chapters on topics such as algebraic integers, completions, cyclotomic fields, ideal functions, ideles and adeles, zeta functions, and L-series. The book also includes proofs of the functional equation for the zeta function and the Brauer-Siegel theorem, and provides a comprehensive treatment of the subject, suitable for advanced undergraduate and graduate students in mathematics.