How long does it take to ghost write a book?

1,000 to 2,000 hours

You save time.

If you can afford a ghostwriter so book the bureau, that means your time is very valuable. It takes a normal author 1,000 to 2,000 hours to write a nonfiction book by himself or herself. Ghostwriters can reduce that time drastically, taking your time commitment down to 10 hours (or even less).