In many ways, it's impossible to be complete when explaining a philosophy like Objectivism. The implications are so wide-reaching. There are logical connections throughout the various ideas. There's a ton of empirical support for it. And you could focus on flawed philosophies to see how it stacks up against them.
Given the inability to be complete, and the time constraints on creating this series of lectures, I aimed to present the philosophy in a systematic way that would give a solid basis for the user to understand the philosophy, and be able to fill in details over time. The emphasis on the structure of the philosophy, and the themes in each branch of the philosophy, were intended to help integrate the various ideas into a cohesive package. To really understand the philosophy, you have to be able to see the big picture and how the elements fit together. The process doesn't end here. This is just the beginning.
I do recommend reading Ayn Rand's books, both fiction and non-fiction. The fiction is able to integrate these ideas in a way that a lecture can't possibly accomplish. The non-fiction is good just to hear it from the source. You don't need to take my word on what Objectivism is when you can read the original articles. Her writings are also filled with wonderful insights, colorful phrases, and powerful themes.
I welcome feedback on these lectures. If you found them useful, please let me know. And it would be great to hear what you found useful so my future efforts can be more effective. Thank you.