This document provides tips and guidelines for effective writing. It discusses the differences between written and oral communication, and outlines various writing structures including paragraphs, sentences, layout, formal vs informal styles, and composition types. The key points covered are formatting structures like titles, headings and paragraphs; sentence length and complexity; and tailoring writing style based on whether it is formal or informal. Tips for improving writing skills are also provided, such as keeping a model bank, learning expressions, keeping a diary, and reading extensively.