The Fifth International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (Metamaterials 2011) was held at the Hotel Barceló-Sants in Barcelona between 10 and 13 October 2011. This event, organized by Metamorphose – Virtual Institute and CIMITEC, was attended by over 380 scientists from 33 different countries and more than 350 works with the latest developments in the field were presented. In the two days following the conference was held the 19th Doctoral School in Metamaterials, where six recognized professors, including the members of CIMITEC Ferran Martín and Jordi Bonache, made their presentations in front of about fifty people.