According to Wikipedia, "Communication (from Latin: communicare, meaning 'to share' or 'to be in relation with') is 'an apparent answer to the painful divisions between self and other, private and public, and inner thought and outer world.' As this definition indicates, communication is difficult to define in a consistent manner, because in common use it refers to a very wide range of different behaviours involved in the propagation of information."
Wikiversity is a Wikimedia Foundation project devoted to learning resources, learning projects, and research for use in all levels, types, and styles of education from pre-school to university, including professional training and informal learning.
There are lots of self-learning contents about communication, which you can study by yourself before going into a formal education.
Category:Communication - Wikiversity (this category is not finished yet)
There are some interesting topics that you may have a look: