What books changed the way you were doing the business vs. the way you're now?

I was reflecting on what it takes to change and solidify the way to develop a business idea, launch it, market it and grow it. And, I thought it will require a great understanding of; - Having the ability to see the needs and wants of the real customer - Find a market and a significant market gap - Develop a great product and offer world-class service - Getting started and getting things done - Practice the revenue and profit mindset right from the start - Ability to identify and hire the best people and generate entrepreneurial excitement. - Right strategies to that help your customers grow, improve, or profit. - The way to outdo the competition and become a dominant company in your industry. - How to be generous to employees with wages, profit-sharing, and benefits. and many other aspects to become better at doing business with ease.