I am looking for a general introduction to discrete subgroups of the euclidean group (= group of isometries in euclidean space).
Even though I searched quite a bit, I was unable to find a good introduction.
Any hints for which book or survey to look?
Perhaps the book by Conway, Burgiel, and Goodman-Strauss entitled "The symmetries of things". Although I have not looked at the book myself, I know Conway to be an entertaining author, and the table of contents seems to cover a wide range of topics regarding discrete subgroups of isometries of Euclidean spaces and of other spaces.