Best way to learn ROOT

Hey all,
what is the best way to learn root, for a Master’s Physics student who want to pursue PhD in High Energy Physics?
any HEP related analysis tutorial series/book/readout in details??
PS: I have already tried seeing tutorials on website but I am having hard times understanding them.

The ROOT manual is surely meant to help people from the beginning. It will help you with the basic concepts and will help you to navigate in the reference guide and tutorials.

Also the ROOT Primer gives lessons “step by steps” on the basics.

If you have questions or problems once you will have start with ROOT you can ask them
on the ROOT Forum (but this you know) of look at the FAQs