1 The Prime Number Theorem and Generalizations.- 2 Artin L-Functions.- 3 Equidistribution and L-Functions.- 4 Modular Forms and Dirichlet Series.- 5 Dirichlet L-Functions.- 6 Non-Vanishing of Quadratic Twists of Modular L-Functions.- 7 Selberg's Conjectures.- 8 Suggestions for Further Reading.