  This lecture contains a pedagogical approach to the description of Z' physics
in the formalism of form factors. Usually, only electroweak corrections are
described by form factors, which modify the Weinberg angle and the overall
normalization. It is demonstrated how this formalism can be extended to include
different Born contributions. In the second part of the lecture, QCD and QED
corrections are considered. The development and consequences of the radiative
tail for a Z' search are discussed in detail.
