Leadership skills training is not that simple, but it is widespread. The best way to develop your leadership skills is through experience and a mentor at the same time. Just being a leader for years at a time does make you a good and effective leader. And going to seminars, reading books does not make you a good leader in and of itself; however, it helps. There are leadership schools that are internal to corporations that teach leadership through activities such as team-building exercises. One of the best methods I've seen to teach leadership in a classroom format is allowing the students to become the leaders of their own learning environment through the guidance of the staff. They know that they have to learn how to get along with others, have the strength to disagree respectfully, and coordinate activities and tasks.
If you don't have access to one of these training academies internally and you can look at several training options. One of them being the Dale Carnegie training. It is a live online professional leadership Academy that focuses on team and organizational leadership. You will learn how to become effective at coaching, problem-solving analysis, and decision-making. As well as building effective communication and listening skills. The goal of the program is to develop leaders over managers.
If you are academically inclined, you should look at top schools, the best leadership school, in my opinion, is the University of Chicago Booth school of business. Its leadership program was developed in 1989; the newest was launched in 2009 called effective leadership. It will make the program unique because it teaches students to have a bias for action instead of thinking first and brainstorming and doing little action. This is excellent because you learn through trial and error and learn to be comfortable taking risks.
Personally, I suggest you find someone who's experienced in leadership, find someone to mentor you by getting close to leaders in your organization and pick their brain. Sometimes you can soak up knowledge just listening, which is what I have done. During my time in the military, I've had the luxury of spending entire workdays being mentored by leaders. You may not have this luxury, and sometimes I didn't either, so I would simply listen and watch how leaders conducted themselves and made a note of what they did. Vicarious learning is an effective way of learning because it's always better to learn from someone else's mistakes; it saves heartache, time, and money.
Spend time becoming an autodidact; no one will take charge of your leadership skills training more than yourself. You must learn to become self-taught, through trial and error, you can apply what you learn at seminars, books, and podcasts. Keep a journal to write down what you learned when you applied the leadership practices and theories. Becoming a leader is not something that is done overnight; it is something that is developed through lots of trial and error. This website will be continuously updated to provide the best and newest leadership skills training.