DoctoralThe goal of these lessons is to provide a quick access to some popular models of random geometric structures arising in a number of used in applications: communication networks (including social, transportation and wireless networks), geology, material sciences and astronomy. The course is composed of the following 15 lectures:1. Bond percolation on the square lattice2. Galton-Watson tree3. Erdős-Rényi graph — emergence of the giant component4. Graphs with a given node degree distribution5. Typical nodes and random unimodular graphs6. Erdős-Rényi graph — emergence of the full connectivity7. Poisson point process8. Point conditioning and Palm theory for point processes9. Hard-core point processes10. Stationary point processes and mas...