Diffraction 2014 is the eigth biennial Workshop dedicated to theoretical and experimental progress in diffractive hadronic collisions at high energies. The previous events took place at Cetraro (2000), Alushta (2002), Cala Gonone (2004), Milos (2006), La Londe-les-Maures (2008), Otranto (2010), Lanzarote (2012). Topics will include Experimental results and prospects Phenomenological approaches Progress in the theory about Diffraction in e-p collisions Diffraction in DIS Forward physics in hadron-hadron collisions Diffraction in hadron-hadron collisions LHC and post-LHC Spin Physics Diffraction in nuclear physics Saturation Progress in QCD