1. Banach algebras and uniform algebras --; 2. Three classical families of functions --; 3. Groups and semigroups --; 4. Shift-invariant algebras on compact groups --; 5. Extension of semicharacters and additive weights --; 6. G-disc algebras --; 7. Harmonicity on groups and G-discs --; 8. Shift-invariant algebras and inductive limit algebras on groups.