Great question, Beth!
One book I would readily recommend is The E-Myth Revisited, by Michael Gerber. I feel that is a must read if you are planning to start your business. The E in E-Myth refers to Entrepreneurs, and not E-Commerce. The basic premise is that not every business owner is an entrepreneur and that not every technician is cut out for business management.
Interesting! I find SCORE a great resource for new small businesses.
SCORE is the nation’s largest network of volunteer, expert business mentors.
As a resource partner of the U.S. Small Business Administration (SBA), SCORE has helped more than 10 million entrepreneurs
through mentoring, workshops and educational resources since 1964.And SCORE is FREE.
I am currently reading "Steal Like an Artist" by Austin Kleon. It provides inspiration.