The spells you need for jungle is very simple.

You use SMITE,
and you can use FLASH, EXHAUST or IGNITE.

I prefer FLASH and SMITE, because I use FLASH most of the time to escape some situations.

Your Q has a low cooldown, so you can spam it a lot.
I always max my Q first and then my W to be faster for ganks.

If you get countered alot, then you can max your E instead of W.

I have searched alot on the internet to learn about Evelynn,
But I still didn't knew if she was AD or AP.

Later on, I saw that they are both used, and I played Hybrid with her.
Hybrid by Evelynn is nice to play.

I use a lot AP. (Items, Runes, Masteries)
And just a little bit AD. (Just for the extra bust damage)

How you can clear your jungle on both sides (purple or blue):

- Start with your Blue Buff
- Wolves
- Wraiths
- Wolves
- Red Buff
- Wraiths
- Golems
- Wolves

You can gank in lanes too, and then clear the jungle again.
If you're strong enough, you can do the Dragon too.

Pros:

- High Burst
- She is very sneaky because of her passive (Stealth)
- Her Q has a very low cooldown
- She can easily gank
- Her ultimate gives her a shield
- Mana regen is fast while she's stealthed

Cons:

- Squishy
- Vulnerable to counter jungling
- Her build takes long to be a full build (Need a lot gold)
- She needs to be fed or she is useless
- She needs the Blue a lot, or she is out of mana rapidly