Guild Wars 2

Hi.

So there are a bunch of pages around Bloodstone Fen and when you collect em all you end up having a total of 6 books in your inventory (3 complete and 3 incomplete.. for some reason..).

My question is… what are they for?
Should I just throw them away? Or will they be useful for something in the future? Like as a currency of some sort or tradable for gold with an NPC or something?

Right now I just have 6 inventory slots taken by there for no reason..

Thanks.

The wiki has a summary of the journal pages, so you can read them in chronological order.