Preface: MeNu2013, the 13th International Conference on “Meson-Nucleon Physics and the Structure of the Nucleon”Marco Battaglieri, Annalisa D'Angelo, Raffaella De Vita, Alessandro Pascolini and Giovanni SalmèEPJ Web of Conferences, 73 (2014) 00001DOI: https://doi.org/10.1051/epjconf/20147300001