Assuming that the reader is familiar with sheaf theory, the book gives a
self-contained introduction to the theory of constructible sheaves
related to many kinds of singular spaces, such as cell complexes,
triangulated spaces, semialgebraic and subanalytic sets, complex
algebraic or analytic sets, stratified spaces, and quotient spaces. The
relation to the underlying geometrical ideas are worked out in detail,
together with many applications to the topology of such spaces. All
chapters have their own detailed introduction, containing the main
results and definitions, illustrated in simple terms by a number of
examples. The technical details of the proof are postponed to later
sections, since these are not needed for the applications.