Hundreds of great business books come out every year. It's not possible to read them all, but here is my own recommended list can help entrepreneurs and leaders at all stages of their careers.

Business Model Generation: A Handbook for Visionaries, Game Changers, and Challengers (2010) by Alexander Osterwalder, Yves Pigneur

Business Model Generation is a handbook for visionaries, game changers, and challengers striving to defy outmoded business models and design tomorrow's enterprises. If your organization needs to adapt to harsh new realities, but you don't yet have a strategy that will get you out in front of your competitors, you need Business Model Generation. 

Profit First: A Simple System to Transform Any Business from a Cash-Eating Monster to a Money-Making Machine (2014) by Mike Michalowicz

Profitable business owners are sometimes surprised to find money leaves the business almost as quickly as it arrives. This book provides a system for small business owners who want to take charge of their cash and grow a business.

Getting Things Done: The Art of Stress-Free Productivity (2001) by David Allen

Getting Things Done details how to build a system for capturing ideas and working on the right things at the right time. Allen also recommends overloaded executives and entrepreneurs review their priorities and workload once a week. This practice, known as a weekly review, will help you focus on what matters during the week ahead.

Good to Great (2001) by Jim Collins

"What a company spends its time doing should be concerned with developing and generating momentum," Collins explained. Collins' work suggests that a company should focus on building one thing to drive another. (Which Mercury do)

The Wealth of Nations by Adam Smith

This classic, first published in 1776, is still required reading in university Economics departments.  “The Wealth of Nations” describes the roots of prosperity in England and the Netherlands and proposes economic theories about work, the market, the nature of wealth, wages, and capital accumulation, among other concepts. To Smith, the market was guided by an "invisible hand," or the free pursuit of individual interests that benefited the common good by solving problems.