[Warlock] Don't buy twice you books by mistake

[altoholic 2]

Hello

 

Back in Nostalrius, i remember using a little addon who colored in blue the books my pets allready know (or somethin like that, to avoid buying books i allready bought).

I can't remember it's name... any warlock here using something similar ?

[knecke 1]

GrimoireKeeper

[altoholic 2]

That's it! Thank you.