This document provides an overview of thesis writing. It discusses what constitutes a thesis, the typical structure of a thesis including 5 chapters, and different categories of theses such as those in science/engineering, social science/humanities, action research, and design. It also covers the thesis writing process, including using writing tools like LaTeX and Word, following style guides, and employing critical writing skills like planning, clarity, brevity, simplicity, and addressing copyrights. The document provides examples and references for each category of thesis to illustrate the key elements that need to be covered.