There is no one size fits all answer to this question, as the cost of making a book trailer can vary greatly depending on a number of factors. Some book trailers are very simple and can be made for very little money, while others can be much more complex and expensive.
Some things that will affect the cost of making a book trailer include the length of the trailer, the number of locations used, the number of actors involved, and the overall production value. In general, the more complex the book trailer, the more it will cost to make.
If you are thinking about making a book trailer, you will need to work out your budget and what you are willing to spend on it. Once you have an idea of your budget, you can start looking into what kind of book trailer you would like to make.
There are a number of companies that specialize in making book trailers, so finding one that fits your budget should not be too difficult.
Here are a few examples of book trailers that have been made recently:
-The Fault in Our Stars: https://www.youtube.com/watch?v=9ItBvH5J6ss
-Divergent: https://www.youtube.com/watch?v=sutgWjz10sM
-The Hunger Games: https://www.youtube.com/watch?v=PbA63a7H0bo
As you can see, book trailers can vary greatly in terms of cost. The Fault in Our Stars book trailer cost around $12,000 to make, while the Divergent book trailer had a budget of $100,000.
Ultimately, how much it costs to make a book trailer will depend on your own budget and what you are hoping to achieve with the trailer. If you are looking to simply raise awareness for your book, then a more low-budget trailer may be sufficient. However, if you are hoping to use the trailer to generate sales, then you may need to invest more money into it.