1. Introduction
2. Magnetic Reconnection
2.1 Magnetohydrodynamic Reconnection
2.2 Collisionless Reconnection
2.3 Particle Acceleration during Magnetic Reconnection
3. Collisionless Shocks
3.1 Diffusion-Convection Equation
3.2 Diffusive Shock Acceleration
3.3 Collisionless Shocks Dynamics
Based on the elemenary processes introduced during the lecture, applications to space and astrophysical plasma phenomena will also be discussed, including observations of solar flares, planetary magnetospheres, interplanetary shocks, planetary bow shocks, supernova remant shocks and others.