Radio emission from normal galaxies.

Radio emission from normal galaxies is reviewed with emphasis on those aspects of radio emission and recent star formation that are common to most normal galaxies and their application to a simple model consistent with the data. The discussion covers the range of source properties found in the population of normal galaxies, characteristics of free-free emission and synchrotron radiation that are needed to interpret observations of normal galaxies, frequently used equations and their consequences for real observations, FIR/radio correlation, and population-synthesis models relating FIR/radio emission to recent star formation.