Here is a list of books on various topics that I find worthwile opening.
tom Dieck: Transformation groups
Onishchik, Vinberg: Lie groups and Lie algebras III
Porteous: Topological geometry
Borho, Brylinski, MacPherson: Nilpotent orbits, primitive ideals and characteristic classes
Conner, Floyd: Differentiable periodic maps
Shapiro: Compositions of quadratic forms
Fomenko, Fuchs: Homotopical topology
Adams: Blue Book (Stable homotopy and generalised homology)
tom Dieck: Algebraic topology
Hirzebruch, Berger, Jung: Manifolds and modular forms
Harris: Algebraic geometry
Eisenbud, Harris: 3264 and all that
Arnold, Goryunov, Lyashko, Vasil'ev : Singularity Theory I