Pictures have been taken from Pixaby and I just want to acknowledge.
Images were also taken form http://logomakr.com/ as follows:
Pdf graphic by <a href=”http://www.freepik.com/”>Freepik</a> from <a href=”http://www.flaticon.com/”>Flaticon</a> is licensed under <a href=”http://creativecommons.org/licenses/by/3.0/” title=”Creative Commons BY 3.0″>CC BY 3.0</a>. Made with <a href=”http://logomakr.com” title=”Logo Maker”>Logo Maker</a>