1. Introduction and Overview
2. Special relativity: the basics
II. Relativity - Metric Description of Spacetime
3. Special relativity: the geometric formulation
4. Principle of equivalence
5. Metric description of a curved space
6. GR as a geometric theory of gravity - I
7. Spherically symmetric spacetime - GR tests
9. Homogeneous and isotropic universe
10. Expanding universe and thermal relics
11. Inflation and the accelerating universe
IV. Relativity - Full Tensor Formulation
12. Tensors in special relativity
13. Tensors in general relativity
14. GR as a geometric theory of gravity - II
15. Linearized theory and gravitational waves