This is the video commentary for the study guide for chapter 1 for BUS-123, Introduction to Investments. Actually, it is the commentary for all the study guides for all the chapters. Every chapter has a study guide. The study guides contain the chapter terms that you should know. Study every day! Repetition is the key to learning, Dear Students. We also take a look at how you can download or copy the documents from Google Docs for your own usage.