This document discusses intra-organizational communication within companies. It defines intra-organizational communication as involving large groups working together within an organization to accomplish complex tasks. The document outlines the communication process, different structures of communication (formal vs informal), channels of communication (written, oral, electronic), levels of management, and the need for intra-organizational communication to inform, convey instructions, promote understanding, resolve disputes, and motivate employees. It also notes some limitations of intra-organizational communication such as issues between communication channels and potential for misinterpretation.