  This review describes the observational properties of radio pulsars, fast
rotating neutron stars, emitting radio waves. After the introduction we give a
list of milestones in pulsar research. The following chapters concentrate on
pulsar morphology: the characteristic pulsar parameters such as pulse shape,
pulsar spectrum, polarization and time dependence. We give information on the
evolution of pulsars with frequency since this has a direct connection with the
emission heights, as postulated in the radius to frequency mapping (RFM)
concept. We deal successively with the properties of normal (slow) pulsars and
of millisecond (fast-recycled) pulsars. The final chapters give the
distribution characteristics of the presently catalogued 1300 objects.
