Symplectic Geometric Algorithms for Hamiltonian Systems Preliminaries of Differentiable Manifolds Symplectic Algebra and Geometry Preliminaries Hamiltonian Mechanics and Symplectic Geometry Symplectic Difference Schemes for Hamiltonian Systems The Generating Function Method The Calculus of Generating Functions and Formal Energy Symplectic Runge Kutta Methods Composition Scheme Formal Power Series and B Series Volume Preserving Methods for Source Free Systems Contact Algorithms for Contact Dynamical Systems Poisson Bracket and Lie Poisson Schemes KAM Theorem of Symplectic Algorithms Lee Variational Integrator Structure Preserving Schemes for Birkhoff Systems Multisymplectic and Variational Integrators. Symplectic Geometric Algorithms for Hamiltonian Systems will be useful not only for numerical analysts but also for those in theoretical physics computational chemistry celestial mechanics etc. The book generalizes and develops the generating function and Hamilton Jacobi equation theory from the perspective of the symplectic geometry and symplectic algebra. It will be a useful resource for engineers and scientists in the fields of quantum theory astrophysics atomic and molecular dynamics climate prediction oil exploration etc. Therefore a systematic research and development of numerical methodology for Hamiltonian systems is well motivated. Were it successful it would imply wide ranging applications.