For those who are new to testing or have only heard of Jest but have never used it, this might be the best course. It is structured so that you can use Jest for everything from small unit tests to large integrated tests, so that you can apply it in practice. Also, any questions or concerns that you may have while using JEST are already answered in the lecture in a self-answer format, so you don't have to ask. Lastly, the curriculum list is intuitive. You don't get everything from listening to the lecture once; you have to listen to it two or three times, and this curriculum list helps us solve our questions and concerns right away. This alone is good because it takes a big step forward in solving them.