I. Rational Series.- 1 Semirings.- 2 Formal Series.- 3 The Topology of K"X".- 4 Rational Series.- 5 Recognizable Series.- 6 The Fundamental Theorem.

- Exercises for Chapter I.- Notes to Chapter I.- II. Minimization.- 1 Syntactic Ideals.- 2 Reduced Linear Representations.- 3 The Reduction Algorithm.- Exercises for Chapter II.

- Notes to Chapter II.- III. Series and Languages.- 1 The Theorem of Kleene.- 2 Series and Rational Languages.- 3 Supports.- 4 Iteration.- 5 Complementation.

- Exercises for Chapter III.- Notes to Chapter III.- IV. Rational Series in One Variable.- 1 Rational Functions.- 2 The Exponential Polynomial.- 3 A Theorem of Pólya.- 4 A Theorem of Skolem, Mahler and Lech.

- Notes to Chapter IV.- V. Changing the Semiring.- 1 Rational Series over a Principal Ring.- 2 Positive Rational Series.- 3 Fatou Extensions.- Exercises for Chapter V.- Notes to Chapter V.

- VI. Decidability.- 1 Problems of Supports.- 2 Growth.- Exercises for Chapter VI.- Notes to Chapter VI.- VII. Noncommutative Polynomials.

- 1 The Weak Algorithm.- 2 Continuant Polynomials.- 3 Inertia.- 4 Gauss's Lemma.- Exercises for Chapter VII.- Notes to Chapter VII.- VIII. Codes and Formal Series.

- 1 Codes.- 2 Completeness.- 3 The Degree of a Code.- 4 Factorization.- Exercises for Chapter VIII.- Notes to Chapter VIII.- References.