1. Hilbert's fifth problem and proper actions of Lie groups.- 2. Equivariant algebraic vector bundles over representations - a survey.- 3. G-manifolds and G-vector bundles in algebraic, semialgebraic, and definable categories.- 4. Geometry of Finite Topological spaces and equivariant finite topological spaces.- 5. On the theory of homotopy representations. A survey.- 6. Manifolds as fixed point sets of smooth compact Lie group actions.- 7. Surgery and homotopy theory in study of the transformation groups.- 8. Kervaire's obstructions of free actions of finite cyclic groups on homotopy spheres.- 9. The Burnside ring revisited.- 10. Multiplicative stabilization and transformation groups.- 11. Symmetries on manifolds, deformations and rational homotopy: a survey.- 12. Rigidity of codimension one locally free actions of solvable Lie groups.- 13. Smooth actions of non-compact semi-simple Lie groups.- 14. Hamiltonian group actions ana equivariant indices.- 15. Controlled methods in equivariant topology, a survey.