I am not sure where they are located, but I can tell you that the level 60 book is in Maj'Dul, not KoS.
EDIT: Found this for you on EQ Traders.
Craftsmen, Duvawocket, Dreadnever Crash Site, Bonemire - take the Enchanted Lands (or Feerrott) spires, and head to -303, 51, 584.
Edited, Mar 6th 2007 9:54am by Mearyk