**Author details**

Slavomír Gálik\* and Sabína Gáliková Tolnaiová Faculty of Mass Media Communication, University of Ss. Cyril and Methodius in Trnava, Slovakia

\*Address all correspondence to: s\_galik@yahoo.com

© 2019 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
