Identify the most important books that have the greatest positive impact on your work and life?

Law of Attraction

for me, it is "Create Your Own Future" for Brian Tracy.

Being Digital by Nicholas Negroponte

Reeingineering the Corporation by Michel Hammer

Business @ the speed of thought by Bill Gates

Out of Control by Kevin Kelly

Competitive Strategy, Competitive Advantage, by Michel Porter

7 Habits of Highly Effective People by Steven Covey

On a software engineering term, the Design Patterns (Gand of Four) had a great impact on my work, even on my way of thinking. 

On a general well-being term, the PMP Head First book gave me great ideas on how to organize my work, my life, even my relationship. It is true these book targets project management skills, but it gives a reader a great deal on how to define, plan and organize any small or big undertaken mission.