What is the difference between the Online Manual and the Video Lessons?

Some students prefer reading, while some prefer having an video instructor cover the concepts. The Video Lessons are designed to assist the second group of students. The Video Lessons are based on the Online Manual, but contain more visually-oriented examples and explanations. In addition, the Video Lessons go into more depth at explaining the concepts, but are not as detailed as the manual in the technical content, such as proofs.