How do I understand the theme of communication?

My understanding of the theme of communication is broader than looking at how characters talk to each other, I also look at how texts communicate with audiences. In my work, I've looked at alternative forms of communication: letter writing, adaptations, and changing relationships to texts. I think communication is more that the exact words that are written on a page, it is also a question of how the message of the text emerges for the reader. To me, communication is also tied to gender and agency because I think communication allows for a gendered agency that provides a voice to those who may not normally be afforded a voice.