A presentation on the Equivalence Principle that summarizes the theoretical and experimental approaches for probing violations. The Equivalence Principle Claus L¨ammerzahl Centre for Applied Space Technology and Microgravity (ZARM), University of Bremen, 28359 Bremen, Germany MICROSCOPE Colloquium Paris, September 19, 2011 free pdf: https://www.google.com/url?q=http://gram.oca.eu/Ressources_doc/EP_Colloquium_2011/2%20C%20Lammerzahl.pdf&sa=U&ved=0ahUKEwjar-70ucLdAhXwdN8KHQkOBSsQFggdMAI&usg=AOvVaw0G4gLsq6eVVUXer-3X4n9T excerpt images: