Guild Wars 2

Where can i find pvp npc? and what level do i need to be and is theres any link to guide me getting to know all the maps and npc beacause last night i wasted 7hours roaming the map and yet it dirint help me

What NPCs do you mean? The Item vendors ? Glory Vendors? Map NPCs?

You want to know how to get into PvP? If so, in the menu on the top left of your screen, you should see 2 swords click on that, then the white box which say go to the heart of the mists on it.