Writing a long, formal document such as a dissertation requires more care and greater preparation than writing short ones such as essays. As dissertation documents are used for assessment, there are often strict formatting requirements and layout instructions.
This is a small selection of books on writing dissertations and essays. For more examples, search the Library using a KEYWORD search e.g. try looking for 'business dissertation writing'. Alternatively browse the books in the library around class mark K 8.135.