books.google.ru - This marvelous book of pictures illustrates the fundamental concepts of geometric topology in a way that is very friendly to the reader. It will be of value to anyone who wants to understand the subject by way of examples. Undergraduates, beginning graduate students, and non-professionals will profit...http://books.google.ru/books/about/How_surfaces_intersect_in_space.html?hl=ru&id=jPPiur0Dd6UC&utm_source=gb-gplus-shareHow surfaces intersect in space
