During your career as a pilot you will see more advanced navigation systems in the airplanes you fly. Systems like Radio Magnetic Indicators, Horizontal Situation Indicators and navigation systems like RNAV, LORAN (now obsolete) and satellite navigation systems as GPS.
Eurocontrol published a document containing GPS navigation notes. This is a must read for pilots.
Eurocontrol Guidance Notes
Excerpt from the document:
A large and increasing number of European General Aviation pilots already use GPS and find it an extremely useful aid to safe navigation. Aviation equipment characteristics (and prices) vary from a pocket-size portable to a panel mounted fully integrated system.
Most are sold with aviation databases, and some are certified for use in IFR flight.Many feature a moving map display, and most of those have a facility that warns you if you are approaching airspace reservations.
Some equipment offers vertical navigation guidance, including minimum safe altitude identification.
To continue reading see the pdf below: