This particular video gives a quick introduction about who Swedenborg is and a "101" about the experiences he shared about the world of spirits and the nature of everything, based on his experience/perspective.
The reason I was curious about Swedenborg in the first place is that some people think Joseph Smith may have gotten some of his teachings from Swedenborg's writings (see image at the bottom of this post for similarities). However, similarities aren't proof of plagiarism. It's entirely possible both Smith and Swedenborg simply had similar details revealed to them from God.
Swedenborg 101: The Basic Nature of Everything