1 “... an introduction to algebraic number theory and some of its central objects: rings of integers, the unit group...”

2 “... in basic algebraic number theory and Galois theory will find detailed discussions of the reciprocity laws...”

3 “... of algebraic number theory. In her letters, details of proofs appear alongside conjectures and speculations...”

4 “... number theory, in particular class field theory. Their correspondence admits a view of the ideas which...”