I don't think you can measure the number of people, only the number of "units" (copies) sold. Publishing statistics don't distinguish between "spiritual" and "religious" books. Sales of religious books have been very good in recent years, but in 2009 the New York Times reported that they had fallen by 10 percent to 247 million copies from 275 million copies.
Each ereader can contain many books while being compact and light , and people dont have to carry a bunch of books with them in a bus or to a travel.
There are several millions of books which are sold in bookstores and online each year. The exact or average number of books sold or purchased is not known or published.
Sonia Choquette was born in 1963. She is a spiritual teacher, and tends to have clients that need to find their spiritual side. She has written many books on spiritual healing too.
In Lydia's room, there are 4 shelves with 9 books on each shelf. How many books are there in Lydia's room in all?
Sylvia Browne authored over 50 books during her career as a psychic and spiritual author.
Average of about 200 pages each
6 in each.
The answer depends on how many books on each subject there are.
The average number of books read by a student is 2-3 books a month. This all depends on how big of a reader the student is and how many books are they reading in classes.
1628 books
Lobsang Rampa: a Tibetan Buddhist who has written many books regarding his life and the spiritual lessons he learned. The first of his books is called "The Third Eye", an interesting read.
In the entire bible there are 38 books named after people.