I'm C. K. Gunsalus and I'm delighted that you're joining us for course three in this specialization sequence. I hope that you've benefited from courses one and two, and that you've been practicing and applying the skills, and the ideas and the concepts throughout those courses into your career. And you're seeing differences as you move along. In course one, we talked about your foundations. We talked about your values and a set of skills to build from decision-making framework, to personal script, to recognizing personal tragedies and avoiding them. In course two, we talked about building your brand. We talked about listening and asking questions. Building rapport and the special skill of paraphrasing. We learned about cognitive biases, errors and thinking, and how those connect to and relate to the career tragedies. We talked about how all of those skills apply to having disputes professionally and building your professional brand. So as you begin to incorporate those skills into your career, and as you build and evolve and refine your personal leadership cradle, if you haven't already you will soon have the opportunity for leadership and maybe in ways that you hadn't originally envisioned leadership. In this course, we're going to talk about leadership and dimensions of leadership. Again, we'll be using two minute challenges to explore different aspects of some of the topics we'll be discussing, and we're particularly fortunate to have a very wide range of guest experts, who will be here to comment on the skills, share their experiences, share their insights and tell us what they think of some of the two minute challenges. Welcome to course three of Professional I.Q. Preventing and Solving Problems at work. You can be a very strong individual contributor. However, you will hit a certain plateau and you're not going to be able to excel. We talked about influencing individuals. Your ability to influence and get a team to really do what it needs to do to be successful and perform, is more important than the individual contributions you can make. We do have individuals who think, "I'm just going to knock it out of the park as an individual contributor," and that's great. They can get a certain, They can go so far in their career, but it's not until you're leading teams. To be a leader it's about how you're connecting with other individuals. That connection and getting individuals to really want to work for you and spend additional time for you, is much more around the soft skills and leadership skills than it is a technical capabilities or business acting skills that you have. So being a leader for us doesn't necessarily mean someone who's in charge of the entire project or leads the team. Our leaders in the organization are ones that would have build trust and get individuals to be as productive and exceptional as possible. We have lots of different leaders in the firm that might not be the most visible leaders, but their core skills are leaders within the organization leading from behind. And those are extremely successful resources we have in a firm.