How do they work do they add any more specialisations to the game that can't be found

In the core or supplements. Or are they just for reference purposes?

How do they work do they add any more specialisations to the game that can't be found

In the core or supplements. Or are they just for reference purposes?

They're just for reference. Essentially they're sets of cards for each existing specialization, with each one representing a talent, and each card having the talent's description on them. Basically it's the same as if you printed out a talent tree and cut out each talent box so you could have it in front of you.

Ok, Thank You