This document provides an introduction to technical writing and presentation skills. It discusses the differences between academic and technical writing, including their purposes and audiences. Technical writing aims to get something done by communicating clearly to readers who know less about the topic than the writer. The document outlines the characteristics of effective technical writing, including clarity, comprehensiveness, conciseness, and correctness. It also discusses the theory of good design in technical documents and provides tips for writing instructions, reports, and presentations in a professional manner.