WOW Power Leveling: In this way you can learn plenty of extra skills without spending
Quest-giving NPCs (non-player characters—the computer-controlled people that inhabit the game) can also sometimes be seen as de facto skill trainers, since a new skill (or set of skills) is often included in the quest's WOW Power Leveling rewards.
In this way you can learn plenty of extra skills without spending a single skill point, and you will likely unlock most skills earlier in the game in this fashion.
Skill points are valuable and rare - you will earn one for every level you gain, and from certain important quests and missions, but you should not spend them frivolously.
If you see an NPC offering a skill as a quest reward, and the same skill is for sale from a trainer, you're better off hitting the quest.
Your Warrior/Element list can hit the enemy hard with distance spells, and then rush into combat where you'll then knock them down with a hammer blow.
A Ranger/Necromancer can use both beasts and the reanimated dead to pummel foes while battering enemies with ranged arrow attacks.
The professions, skills and attributes you choose to learn and improve over time result in a unique Guild Wars experience for each hero you create.