Groups and Symmetry (Undergraduate Texts in Mathematics) (1st ed. 1988. Corr. 2nd printing)

Throughout the book, the emphasis is placed on concrete examples, many of them geometrical in nature, so that finite rotation groups and the seventeen wallpaper groups are treated in detail alongside theoretical results such as Lagrange's theorem, the Sylow theorems, and the classification theorem for finitely generated abelian groups.