Contents - 1. Introduction to compartmental modelling. 2. The dynamics of linear, time-invariant systems. 3. Analysis of systems with one and two compartments. 4. Analysis of systems with three or more compartments. 5. The concept of identifiability. 6. Laplace transform identifiability analysis. 7. Parameter bounds for unidentifiable compartmental models. 8. Some practical problems of compartmental modelling. 9. Nonlinear compartmental models. 10. Time-varying compartmental models and stochastic compartmental models. 11. Applications of compartmental models. 12. Some unsolved problems in compartmental modelling.