The document provides guidelines for writing effective business emails based on three articles. It discusses major points from the articles, including giving a good impression, writing emails correctly, and using proper formatting. Reasons to read the articles when writing important business emails include writing comprehensible messages, dividing appropriate and inappropriate content, using correct formatting, and avoiding giving unpleasantness to the recipient. Common guidelines found across the articles are the importance of knowing proper business email etiquette to write clearly and leave a good impression.