Contents: General results and concepts on invariant sets and attractors -- Elements of functional analysis -- Attractors of the dissipative evolution equation of the first order in time: reaction-diffusion equations -- Fluid mechanics and pattern formation equations -- Attractors of dissipative wave equations -- Lyapunov exponents and dimensions of attractors -- Explicit bounds on the number of degrees of freedom and the dimension of attractors of some physical systems -- Non-well-posed problems, unstable manifolds. lyapunov functions, and lower bounds on dimensions -- The cone and squeezing properties -- Inertial manifolds -- New chapters: Inertial manifolds and slow manifolds the nonselfadjoint case.