Regarding Devops Preparation

Can any one tell about Abhishek Veeramalla (DEVOPS ZERO TO HERO COURSE) on youtube and i have seen he has platform KodeKloud and pls guide me on:

1)how to use it and whether his lectures are useful

2. Also pls let me know is there a notes for his videos and where can i find (if possible pls provide the links)

Thanks For Helping Me😊