It is a two-part project: a seamless body of written work and its oral defense. Compiling the research and writing a thesis may be the most difficult task yet undertaken in your academic career. Your supervisor(s), while working on it with you, will also be your first critics.
You may be someone who excels at oral presentations but struggles when it comes to organizing and composing your thoughts on paper. You may possess strong writing skills but have difficulty researching, or vice versa. Or you may be an adept writer and researcher yet are stymied by some aspect of the process. This is where we step in.
Ph.D. dissertations are commonly believed to be comprehensive compendiums of the original research done by a graduate student in partial fulfillment of the requirements for the degree of Doctor of Philosophy. In reality, the Ph.D. thesis is usually a number of disparate chapters whose most important feature is not the thoroughness of the experimental description but rather the width of the margins.
Dissertation is a document that presents the author's research and findings and is submitted in support of candidature for a degree or professional qualification.