Does anyone know of a book with a chapter explaining fundamental polygons?
By Fundamental Polygon I mean for example, Fundamental polygon of Klein Bottle, as shown below.
I understand it is a pretty basic concept, so most topology books already assume you know it (e.g. Hatcher), and only give a brief explanation to it.
The greatest problem I have with fundamental polygons is edge identifications and "cutting and gluing", as I lack exposure to these concepts and have problems visualising (and knowing what exactly to do). This results in inability to do questions like (Hatcher question: How to Cut and Glue from Tetrahedron to Klein Bottle) which are supposed to be very basic.
Thanks for your help!
