位相幾何学
html (Provides a well motivated, geometric account of general topology, and shows the use of groupoids in discussing van Kampen's theorem, covering spaces, and orbit spaces.)
Wacław Sierpiński, General Topology, Dover Publications, 2000, ISBN 0-486-41148-6
Pickover, Clifford A. (2006). The Möbius Strip: Dr. August Möbius's Marvelous Band in Mathematics, Games, Literature, Art, Technology, and Cosmology. Thunder's Mouth Press. ISBN 1-56025-826-8 (Provides a popular introduction to topology and geometry)
Gemignani, Michael C. (1990) [1967], Elementary Topology (2nd ed.), Dover Publications Inc., ISBN 0-486-66522-4