Can you learn sub-class skills with a tome

for example can a assassin learn a mesmer skill with a assassin tome if its subclass is mes?

No, you would need a mesmer tome to learn a mesmer skill.

But an assassin can use a mesmers tome?

Yes, if your secondary profession is mesmer

Yes. If the character is an Assassin/Mesmer, then that character can learn Mesmer skills with a Mesmer tome. This goes for all classes as long as they have the corresponding profession with the tome.

Actually, I am pretty sure you can only use regular tomes that correspond to your primary profession. Elite Tomes work for either though.

Edit: this is wrong...I just checked myself and you can in fact use tomes for your secondary. I guess it would help to have the secondary profession selected before using the tome :P. Dumb mistake on my part.

Sharkman, you're mistaken. You can learn ANY skill for your secondary profession using a tome.

thx everyone =)