diff --git a/content/roadmaps/107-nodejs/content/101-nodejs-modules/100-commonjs-vs-esm.md b/content/roadmaps/107-nodejs/content/101-nodejs-modules/100-commonjs-vs-esm.md
index 5197b0bbf..8199c081a 100644
--- a/content/roadmaps/107-nodejs/content/101-nodejs-modules/100-commonjs-vs-esm.md
+++ b/content/roadmaps/107-nodejs/content/101-nodejs-modules/100-commonjs-vs-esm.md
@@ -1,8 +1,10 @@
# CommonJS vs ESM
-The CommonJS module system, on the other hand, is built into Node.js. Before the introduction of the ES module in Node.js, CommonJS was the standard for Node.js modules. As a result, many Node.js libraries and modules are written with CommonJS.
+A module system allows us to split up our code in different parts or to include code written by other developers.
-The ES module format was created to standardize the JavaScript module system. It has become the standard format for encapsulating JavaScript code for reuse.
+Since the very beginning of NodeJS, the CommonJS module system is the default module system within the ecosystem. However, recently a new module system was added to NodeJS - ES modules.
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-CommonJS vs ESM
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+
+CommonJS vs. ES modules in Node.js
+CommonJS vs. ES Modules: Modules and Imports in NodeJS
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diff --git a/content/roadmaps/107-nodejs/content/102-nodejs-npm/101-global-install-vs-local-install.md b/content/roadmaps/107-nodejs/content/102-nodejs-npm/101-global-install-vs-local-install.md
index e3b435a9c..c4876b4bf 100644
--- a/content/roadmaps/107-nodejs/content/102-nodejs-npm/101-global-install-vs-local-install.md
+++ b/content/roadmaps/107-nodejs/content/102-nodejs-npm/101-global-install-vs-local-install.md
@@ -1,9 +1,9 @@
# Global Install vs Local Install
-NodeJS and NPM allow two methods of installing dependencies/packages: Local and Global. This is mainly used when adding a package or dependency as part of a specific project you're working on. The package would be installed (with its dependencies) in `node_modules` folder **under your project**. In addition, in `package.json` file there will be a new line added for the installed dependency under the label `dependencies`.
-At this point - you can start using the package in your NodeJS code by importing the package.
-
-Unlike the local install, you can install packages and dependencies **globally**. This would install it in a system path, and these packages would be available to any program which runs on **this specific** computer. This method is often used for installing command line tools (for example, even `npm` program is a Globally installed npm package).
+NodeJS and NPM allow two methods of installing dependencies/packages: Local and Global. This is mainly used when adding a package or dependency as part of a specific project you're working on. The package would be installed (with its dependencies) in `node_modules` folder **under your project**. In addition, in `package.json` file there will be a new line added for the installed dependency under the label `dependencies`. At this point - you can start using the package in your NodeJS code by importing the package. Unlike the local install, you can install packages and dependencies **globally**. This would install it in a system path, and these packages would be available to any program which runs on **this specific** computer. This method is often used for installing command line tools (for example, even `npm` program is a Globally installed npm package).
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+Downloading and installing packages locally
+Downloading and installing packages globally
NPM Install Docs
+What is global installation of dependencies in Node.js ?
diff --git a/content/roadmaps/107-nodejs/content/106-nodejs-command-line-apps/104-environment-variables/readme.md b/content/roadmaps/107-nodejs/content/106-nodejs-command-line-apps/104-environment-variables/readme.md
index 4f958fbd4..0a1d359e0 100644
--- a/content/roadmaps/107-nodejs/content/106-nodejs-command-line-apps/104-environment-variables/readme.md
+++ b/content/roadmaps/107-nodejs/content/106-nodejs-command-line-apps/104-environment-variables/readme.md
@@ -1 +1,5 @@
-# Environment variables
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+# Environment variables
+
+Reading Environment Variables From Node.js
+Working With Environment Variables in Node.js
+
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