Since the eBook market is so competitive, you really need to work hard to make money in the industry. There are two ways you can focus your energy for best results. First, pour your attention into one or two great books, then work hard to build a buzz around them. With this approach, you're betting on making lots of sales per title. Second, spend time writing as much as possible, and turning out lots of work. While you might not have a runaway success, you're likely to get return readers buying more than one of your books. Some people publish eBooks to supplement other income and are happy with a few hundred dollars a year. Meanwhile, other writers make tens or hundreds of thousands.