+
+This guide comes in four parts:
+
+ * __[API reference](api/Overview.md)__ for users of Nominatim
+ * __[Administration Guide](admin/Installation.md)__ for those who want
+ to install their own Nominatim server
+ * __[Customization Guide](customize/Overview.md)__ for those who want to
+ adapt their own installation to their special requirements
+ * __[Developer's Guide](develop/overview.md)__ for developers of the software