The document discusses effective business writing. It states that business writing should be complete, concise and accurate to convey information clearly to the intended audience. It emphasizes organizing content, considering the audience, and proofreading for errors. Business communications like emails should use proper grammar, be concise yet thorough, and maintain a professional tone. Telephone etiquette in business involves thanking callers, using an inviting tone, active listening, and being punctual for outgoing calls.