The cost to hire a ghostwriter for a non-fiction book can vary widely based on several factors. The key factors influencing the cost include the length and complexity of the book, the experience and expertise of the ghostwriter, the amount of research required, and the client's budget.https://bookwritingonline.com/how-much-does-a-ghost-writer-make/ Additionally, the rates can vary depending on whether the ghostwriter charges per word, per hour, or a flat fee for the entire project.

As a rough estimate, here are some general ranges:

1. Per Word Rates: Ghostwriters might charge anywhere from $0.10 to $2 or more per word. Non-fiction books often have specific requirements and might involve more research, which can influence the per-word rate.

2. Per Hour Rates: Hourly rates for ghostwriters can range from $30 to $100 or more. The complexity of the content and the research involved can impact the number of hours required to complete the project.

3. Flat Fee for the Project: Ghostwriters often charge a flat fee for larger projects like non-fiction books. This fee can vary widely, ranging from a few thousand dollars to tens of thousands or more, depending on the scope and complexity of the project.

It's important to note that highly experienced and well-known ghostwriters may command higher fees. Additionally, if the non-fiction book requires specialized knowledge, extensive research, or interviews, these factors can contribute to the overall cost.

When considering the cost of ghostwriting a non-fiction book, it's crucial to discuss the specific requirements of the project with the ghostwriter and negotiate rates based on the scope of work. Clear communication and a mutual understanding of expectations are key to a successful collaboration.