There are thousands of authors out there who wish to write, but due to one reason or the other, it is impossible for them. These authors are not looking for someone who would go with their ideas to write a book of his/her own. Instead, they want someone they can trust to deliver quality work, keep to time and no try to hold any rights to their book once completed. There are numerous creative courses on Coursera both free and paid where you can learn the ropes of how to write creatively. A ghostwriter would release all rights of the book to the author once they have completed the work. To give an author the confidence they need to employ your services, most of them would always request for samples of your previous work to see if you would be a good fit for the project they have in mind. So, make sure you always have your portfolio filled with works covering various subjects ready to go out as samples.