This nice Inc article looks at the difference between hard and soft skills for business owners. Most of us know that hard skills relate to the more clearly defined, occupational skills needed to do a job, while soft skills are the rather more lucid skills dealing with issues like people management.
The Inc article suggests that hard and soft skills for leaders are distinctly different to those for standard employees. For instance, hard skills for leaders involve advanced data manipulation and interpretation, the ability to organize and deliver on project goals. Soft skills include being able to motivate staff to carry out their duties in a spirited way.