Obviously the price of an electronic a course in miracles bookstore will be less than the physical equivalent because the costs in terms of publishing are much less.
Therefore the price that you put on any electronic book will be less than if you were to sell that same book physically. However, the information in the book itself may be worth a lot more than the price tag you put on it. This is the difficulty when it comes to pricing your Kindle books and making sure that you are not underselling your expertise.
Therefore if you are going to use Kindle books as a means to market your business as well as make money then it is better to create books based on topics rather than a book detailing the whole of your business.
The other thing to consider is that people who purchase information on Kindle books are generally wanting something that they can read very quickly to get the information that they are looking for as quickly as possible. Therefore creating a long book is not going to satisfy what the market demands.
It goes without saying that when you write your Kindle book you must write quality and you must provide the value that your customers expect from the description that you add. However, going into too much detail is not the best way of using Kindle books for building your business.
When you write your book you need to make it very clear that people who purchase it can receive more value from you by downloading something else for free. This must be something relevant to the reason why people have purchased your Kindle book or you will not be adding value. In order for the buyer to download your extra gift they will need to sign up to your email campaign.