The document defines and describes dissertation. It notes that a dissertation shows knowledge on a particular topic through professional writing. Dissertations should attract audiences with clear, concise details presented in a crisp manner. There are two types of dissertation structures: monographs focus on a single subject by one author, while bibliographies traditionally study books as physical objects. Presentation style varies but can include top-down strategies explaining what will be discussed, headings to guide readers, and short chunks of paragraphs.