Under the tertiary education level education institutions of many countries, the terms of dissertation and thesis are commonly used interchangeably to describe the document or treatise that presents and discusses the author's research and findings as support for the author's candidature for an academic degree or professional qualification. But in the United Kingdom, the dissertations are the terms commonly used to describe substantial projects that are submitted as part of taught master's degrees or undergraduate degrees, while the theses are the terms commonly used to describe projects that are parts of Ph.D. (doctoral) degrees and master's degrees.

But whether the UK students from universities and other tertiary education level institutions would have to write dissertations or theses, many of those students would encounter the same difficulties or struggles in writing those documents. Hence, the students who cannot complete their dissertation or thesis writing tasks on time would usually get help from academic writing companies. An academic writing company provides custom writing services for students and other individuals who need help in completing their academic writing tasks.

Many professional and credible academic writing companies would provide custom writing services such as UK essay writing tasks, dissertation or thesis writing tasks, written coursework, and other types of academic writings that are custom written for particular students or customers. Individuals who need help with their dissertation writing tasks would usually get help from professional and reliable writing companies because of the advantages or benefits that the students would get when they hire those companies to provide them with custom dissertations.

The benefits in getting a custom dissertation include:

• A credible and trustworthy academic writing company would undertake a thorough and comprehensive research that is based on the student's own dissertation topic. Hence, the student would not be burdened in researching and reading through voluminous amounts of books, journals, publications such as magazines or newspapers, and other reading materials, and in reading countless online articles from the Internet.
• The student would still be able to research and write his own dissertation document, but with less difficulties because he could get sources for his own research from the bibliography section in the custom dissertation he purchased from the writing company.