  These lecture notes on entanglement in topological systems are part of the
48th IFF Spring School 2017 on Topological Matter: Topological Insulators,
Skyrmions and Majoranas at the Forschungszentrum Juelich, Germany. They cover a
short discussion on topologically ordered phases and review the two main tools
available for detecting topological order - the entanglement entropy and the
entanglement spectrum.
