Free: A few mastery books

Satellite Safety 25 - Mech
Super Transform 20 - Bucc
Exploding Arrows 20 - Wild Hunter
Wild Arrow Blast 20 - Wild Hunter
Wild Arrow Blast 20 - Wild Hunter
Sonic Roar 20 - Wild Hunter
Meteor Shower 30 - F/P Arch Mage
Magic Mastery 20 - Evan
Soul Stone 20 - Evan
Hypnotize 20 - Corsair
Overswing 20 - Aran
Combo Tempest 30 - Aran
Taunt 20 - The adventurer thieves
Venemous Star/Stab 30 - The adventurer thieves
Barricade Mastery 20 - Demon Slayer
Demon Cry 20 - Demon Slayer

First come first serve, offer only available for 4th job classes that the respective book can actually be used on.
If you want to pay for something or just swap out for a Mercedes/Battle Mage/Bishop book, I wouldn't complain. :v

Edit: I'm going through all my characters and junk for the evo rings, so if you can't find me online as PrinnyMask try these:

OverTheTopLH
OverTheTopBR
OverTheTopRH
HeadacheKami
Aknal
OnyxRevya
Tatemae

Added some more books, figured I'd give the topic a bump so the fellows who checked here already know to check again.