At the beginning, we would like to thank to all the participants of RAD 2012 Conference that, in the opinion of the participants and organizers, was very successful. There were more than 190 abstracts and more than 150 participants from more than 30 countries, which was very good regarding the fact that this was the first conference. However, we expect for RAD 2014 Conference to be even more successful than RAD 2012, and we will do our best to make that happen. All the information about the recently finished RAD 2012 Conference could be found on the website: www.rad2012.elfak.rs. There are many interesting things to be seen, including the Book of Abstract, Conference Proceedings, invited lectures, oral presentations, comments and impressions of participants, Joint Research Proposals, photos and video clips from RAD 2012 Conference, so feel free to visit the website. We would like to invite you to take participation at RAD 2014 Conference, and to put the conference date into your schedule. If you plan to participate at RAD 2014 Conference, please fill-in the Preregistration form that will help us in organizing the conference. We are very happy that the impressions of participants of RAD 2012 Conference are very positive (please visit http://www.rad2012.elfak.rs/Guestbook.php), and that obliges and motivates us to organize RAD 2014 Conference even better.