Culture and studies Communication means exchanging signs, and semiotics is the science of signs. I spent a lot of time on Charles Peirce, which is the most important and head splitting American philosopher, founder of semiotics. I wrote a thesis, a book and a doctoral dissertation on Peirce. All that semiotics and philosophy was not useless. I know very finely what communication is, and communication is very important.
Communication is involved almost in any kind of professional activity.
In the modern and post modern civilization we are surrounded by signs in any moment of the day. I teach some university courses, as you can see from my resume, and teaching is mostly communication.