neltymind

I started playing PoE yesterday and I am still unsure which kind of build I want so use to play trough the game. While comparing several builds I was trying to figure out the damage per second of builds and... came to a dead end. Every weapon has an attack speed. What exactly does that mean? I mean, in numbers. I read attacking gets faster if you use two weapons. Again, how much? I need numbers... I build a barbarian, for example. He is solely focused on dealing damage. But I am completely unable to figure out if I am better off using a two-handed weapon, two one-handed weapons with average speed or two one-handed weapons with fast speed (but lower damage) because I have no idea how often my character strikes in each setting and thus I am unable to calculate the average damage per second. Can someone help me with that? I can't find any answers so far. Any help is appreciated.