This report provides a detailed analysis of communication skills in a business context. It begins by defining communication and its importance, then delves into various communication theories and models, such as Shannon and Weaver's information theory model and modern communication models, highlighting their significance in conveying messages effectively. The report also examines different types of communication systems, including PBX phone systems, VoIP, and radio communication, alongside diverse communication methods like written, verbal, non-verbal, and visual communication. Furthermore, it differentiates between formal and informal communication, outlining their benefits and drawbacks. The report includes practical examples such as a letter, a CV, and an email to illustrate written and oral communication skills. The report also addresses barriers to effective communication and concludes with a summary of key principles for effective communication in a business setting. This report is part of Desklib's collection of past papers and solved assignments.