Matsumura states in the preface: “This book is intended as a textbook for graduate students and as a reference work for researchers in commutative algebra and related fields.” It assumes familiarity with basic abstract algebra (groups, rings, fields, modules) but no prior commutative algebra.
While some examples are given (e.g., rings of formal power series, rings of algebraic integers), the book lacks the rich supply of counterexamples found in, say, or Stacks Project . matsumura commutative ring theory pdf