Introduction Chapter 1.Transfer Operator Approach to Conformation Dynamics Chapter 2.Dynamics 2.1.Markov Processes and Transition Functions 2.2.Markov Processes in Molecular Dynamics Chapter 3.Metastability 3.1.Hitting Times and Committors 3.2.Exit Times and Exit Rates 3.3.Metastable Full Partitions and Almost Invariance 3.4.Definitions of Metastability Chapter 4.Transfer Operators and Generators 4.1.Transfer Operators in Molecular Dynamics 4.2.Mean Hitting Times and Committors 4.3.Dominant Eigenvalues 4.4.Spectral Approach to Metastability 4.5.Numerical Experiments Chapter 5.Projected Transfer Operators 5.1.Galerkin Projection 5.2.Density Propagation Error 5.3.Eigenvalue Error 5.4.Committor Projection and Core Sets 5.5.Numerical Experiments Chapter 6.Transition Path Theory 6.1.Reactive Trajectories 6.2.Illustrative Examples Chapter 7.Concluding Remarks Appendix A.Some Mathematical Aspects of Transfer Operators Appendix B.Definition of Exit Rates Bibliography