I've recently finished reading this book by John Sonmez. I have to say that it is a must read for anyone involved in Software Development. No matter where you are in your stage of life/career regarding programming. This book is for you! Whether you're just thinking about getting started or you're already a hired developer. This book will certainly help you excel in your career!
You can pickup the book on Amazon over here!
The author John Sonmez is the founder of Simple Programmer and has amazing courses, a great blog and an epic YouTube channel as well!
Cool...I too am trying to create some training material...I am just starting out and have a couple of posts on JS promise..
https://steemit.com/javascript/@codero/simple-explanation-of-javascript-promises
https://steemit.com/javascript/@codero/handling-multiple-async-operations-in-javascript-with-promise-all
Follow me @codero
Nice! :D