The 7 Habits of Highly Effective People by Stephen Covey
This book has been advised by many teachers of the sales management master i did this year. Is a book recommended to everyone. The seven habits of highly effective people are: Be proactive. Begin with the end in mind. Put first things first. Think win-win. Seek First to Understand, Then to Be Understood. Synergize. Sharpen the Saw. More information of the book in: https://www.franklincovey.com/the-7-habits.html