It's an older book, but it inspired my husband and I to open a bookstore. The book is Do What you Love, The Money will Follow, by Marsha Sinetar. She later wrote a book that is one of my favorites, called Ordinary People as Monks and Mystics.
https://www.amazon.com/dp/B010THR4FW/ref=dp-kindle-redirect?_encoding=UTF8&btkr=1