It helps me understand the basics of NodeJS and Express. The instructor's lecture on what happens on the server side and what needs to be done in relation to understanding the basic concepts of NodeJS was very helpful. The explanation on how to use NPM only tells you how to install, and the explanation on how to manage it with package.json was a bit lacking. The example implementation using the APIs provided by default in Express and NodeJS will be of great help to developers who are new to server-side javascript.