This manual discusses how to use the pre-post processor GID in combination with Tochnog. GID is copyrighted by CIMNE (the International Center for Numerical Methods in Engineering in Barcelona, Spain). See the links at our homepage for the GID program. The GID program is not covered by the GNU public license. However, you don't pay anything if you only use a limited amount of nodes and elements. Usage of GID with an unlimited amount of nodes and elements costs only a nominal amount.