It was great to have the videos... I tried reading the book way back when and was just not able to get past the first module and feel like I understood the content. But the visuals helped tremendously. Some of the questions in the final exam don't necessarily use the same terminology in the course so threw me for a loop a few times (got 98% average on sample quizzes and only 88% on test)... some questions I didn't even know where to find in my notes as note the same terminology. Also, a couple times the video would be done but I would have to stay in the loop for another few seconds before being able to pass to the next lesson (but I'm talking seconds so not a big deal) but if looking for more fluidity... But all in all it was great and so glad I took the time to do it! Definitely better than trying to read the book! Thank you!