There is no set format for a professional ghostwriting contract. Agreements vary in length and complexity from ghostwriter to ghostwriter.There are, however, several items that should be covered. These include exactly what is to be written, who handles the research, who does the bulk of the writing, who gets authorship credit, when work is to begin, which benchmarks are to be met by certain dates, and more.The contract is important; it sets the terms of your relationship, so read it carefully. And don't be afraid to express your concerns or ask for changes.For more detail, see "The Book Ghostwriting Contract."