Warwick is known to be one of the most sustained junglers in the game at this moment. He can clean jungle fast and easy with any item starter. this guide focuses on dealing tons of damage and taking more then you really should even be able to (with no trinity force =D)

this guide is to show how you can build Warwick to (as long as he can attack) tank a great portion of damage from the enemy team and still deal crazy good damage. generaly in teamfights stay out of the main CC "kill zone"

Pros:

a lot of damage
godly sustain
safe jungler
exelent 1v1 fighter

Cons:

Low gank potential until level 6
pretty weak in early game
any sort of stun can end you fast in a teamfight

For spells smite is obvious for jungling and exhaust is great for slowing enenmies for early ganks or shutting down AD champs at any time

The focus of this build is getting a large ammount of lifesteal attack speed and attack damage to be able to heal through 1-3 people focusing you in a fight. items can be swaped out after bloodrazor for more of what you desire. (QSS is for lategame if CC is a problem)

In a teamfight are basicly an AD carry or tank depending on who the enemy team is focusing you should focus on ulting into their back line and doing as much damage as you can un-notaced but the lifesteal will really help when they eventualy target you.

Standard route of Blue, Wolf, Wraith, Mini Golems, Red then free roam (if they have no jungle grab 1 more potion and steal that when u need it)

There are some flaws but this is how I play warwick and maybe others can find their way through this guide