diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -92,6 +92,7 @@ But knowing the stuff will help you become better! :muscle:*
 - :book: [Practical Object Oriented Design in Ruby](http://www.poodr.com/)
 - :movie_camera: [Evolutionary Software Architectures](https://www.youtube.com/watch?v=CglSFhwbI3s)
 - [System Design: A Primer](https://github.com/donnemartin/system-design-primer)
+- :page_facing_up: [How JavaScript works: part-1](https://blog.sessionstack.com/how-does-javascript-actually-work-part-1-b0bacc073cf), [2](https://blog.sessionstack.com/how-javascript-works-inside-the-v8-engine-5-tips-on-how-to-write-optimized-code-ac089e62b12e), [3](https://blog.sessionstack.com/how-javascript-works-memory-management-how-to-handle-4-common-memory-leaks-3f28b94cfbec), [4](https://blog.sessionstack.com/how-javascript-works-event-loop-and-the-rise-of-async-programming-5-ways-to-better-coding-with-2f077c4438b5)
 
 ### Practices
 - :book: [Working Effectively with Legacy Code](https://www.goodreads.com/book/show/44919.Working_Effectively_with_Legacy_Code)