diff --git a/content/roadmaps/107-nodejs/content/103-nodejs-error-handling/103-error-types/103-assertion-errors.md b/content/roadmaps/107-nodejs/content/103-nodejs-error-handling/103-error-types/103-assertion-errors.md
index 75f461b4d..eb1e08004 100644
--- a/content/roadmaps/107-nodejs/content/103-nodejs-error-handling/103-error-types/103-assertion-errors.md
+++ b/content/roadmaps/107-nodejs/content/103-nodejs-error-handling/103-error-types/103-assertion-errors.md
@@ -1 +1,7 @@
-# Assertion errors
\ No newline at end of file
+# Assertion Errors
+
+An `AssertionError` in Node.js is an error that is thrown when the `assert` module determines that a given expression is not truthy. The `assert` module is a built-in Node.js module that provides a simple set of assertion tests that can be used to test the behavior of your code.
+
+<ResourceGroupTitle>Free Content</ResourceGroupTitle>
+<BadgeLink colorScheme='blue' badgeText='Official Docs' href='https://nodejs.org/api/assert.html#new-assertassertionerroroptions'>Node.js Assert</BadgeLink>
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://blog.airbrake.io/blog/nodejs-error-handling/assertionerror-nodejs'>Node.js Error Handling - AssertionError</BadgeLink>