1. The Concordance Model of Cosmology 2. The Expanding Universe 3. The Fundamental Equations of Cosmology 4. The Origin of Species 5. The Inhomogeneous Universe: Matter & Radiation 6. The Inhomogeneous Universe: Gravity 7. Initial Conditions 8. Growth of Structure: Linear Theory 9. The Cosmic Microwave Background 10. The Polarized CMB 11. Probes of Structure: Tracers 12. Growth of Structure: Beyond Linear Theory 13. Probes of Structure: Lensing 14. Analysis and Inference