diff --git a/Documentation/mainpage.dox.in b/Documentation/mainpage.dox.in
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--- a/Documentation/mainpage.dox.in
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 /** \mainpage OpenGeoSys ${OGS_VERSION} source code documentation
+ *
+ * OpenGeoSys (OGS) is a scientific open source project for the development of
+ * numerical methods for the simulation of thermo-hydro-mechanical-chemical
+ * (THMC) processes in porous and fractured media. OGS is implemented in C++, it
+ * is object-oriented with an focus on the numerical solution of coupled multi-field
+ * problems (multi-physics). Parallel versions of OGS are available relying on
+ * both MPI and OpenMP concepts.
+ *
+ * Application areas of OGS are currently CO2
+ * sequestration, geothermal energy, water resources management, hydrology and
+ * waste deposition. OGS is comprised of the THMC-simulator (simply referred to as
+ * *OGS*) and a visualization tool (*Data Explorer*).
+ *
+ * OGS is developed by the OpenGeoSys Community.
  *
  * \section source_documentation Source code documentation
  *