How do I Jungle?

How do I Jungle?

I have not been playing DOTA 2 for that long, and have only really been
laning and playing stadard. But I would love to start to jungle - the only
problem is, I am not sure how to do this in a propper way. Well - I know
the basics.
I want to learn to play as a jungler using Natures Prophet. There might
not be a guide "This is how to win by Jungling with NP" - but I would love
to know how to be effective.
How do I effectivly jungle with Natures Prophet?
(If you belive theres a better alternative of hero choise, I would love to
know - and why)