Most packages have documentation written by the author. There are also subdirectories containing individual documentation for packages. Some of the more recent additions to Contrib are described below.
Complete documentation is in the file sectsty.dvi .
It defines several electrical symbols such as resistors, capacitors, transistors, etc. These symbols can be connected with wires in an easy way. The commands describe the logical structure of the wiring scheme, and LaTeX builds the connections according to this structure. Documentation for using the circ package is in the file circ.dvi . Details for using this package are described in the file url.txt .