This book is the result of reworking part of a rather lengthy course of
lectures of which we delivered several versions at the Leningrad and
Moscow Universities. In these lectures we presented an introduction to
the fundamental topics of topology: homology theory, homotopy theory,
theory of bundles, and topology of manifolds. The structure of the
course was well determined by the guiding term elementary topology,
whose main significance resides in the fact that it made us use a rather
simple apparatus. tn this book we have retained {hose sections of the
course where algebra plays a subordinate role. We plan to publish the
more algebraic part of the lectures as a separate book. Reprocessing the
lectures to produce the book resulted in the profits and losses inherent
in such a situation: the rigour has increased to the detriment of the
intuitiveness, the geometric descriptions have been replaced by formulas
needing interpretations, etc. Nevertheless, it seems to us tha-t the
book retains the main qualities of our lectures: their elementary,
systematic, and pedagogical features. The preparation of the reader is
assumed to be limi ted to the usual knowledge of set -theory, algebra,
and calculus which mathematics students should master after the first
year and a half of studies. The exposition is accompanied by examples
and exercises. We hope that the book can be used as a topology textbook.