You need high levels of confidence whether it is to persuade a customer, give a presentation, face an interview, learn something new, solve a problem, take on failures, assert yourself, take initiative, and achieve challenging targets.Confidence comes from self-esteem, it is the root of our personality, and most of the problems that we face can be traced back to our self-esteem. If one can understand self-esteem then do something on a daily basis to build it, then most of the problems would disappear.Self-esteem plays a very important part in the workplace. Conflicts and ego issues would reduce to a great degree. Communication would become open and honest, trust levels would increase, relationships would improve, people would feel good to come to work, team work would become better, customer satisfaction would increase to a great degree and attrition levels would go down.