Tome of Secrets

Tomes of Secrets (db) are required to train your both your Barbarian and Jeweler Artisans in the highest level of crafting. They are also required for crafting items that are crafting level 9 (Glorious) and 10 (Exalted).

They drop as loot in Inferno difficulty and can be bought on the Auction House also. They can not be bought from any vendor in the game.

They stack automatically in your backpack when you loot them up to a maximum of 1000 and take up one square.

You do not need to do anything with them to use them when training your Artisan, just as long as they are in your backpack (not your stash) they have access to them to train up.

Blacksmith Training Cost in Pages, Tomes of Blacksmithing/Secrets & Gold
Level[e]	Gold to train to that level	# of Pages of B'Smith	# of Tomes of B'Smith	# of Tomes of Secrets
1. Apprentice	0	0	0	0
2. Journeyman	5k	0	0	0
3. Adept	6k	0	0	0
4. Master	10k	0	0	0
5. Grand Master	12k	2	0	0
6. Illustrious	20k	6	0	0
7. Magnificent	22k	4	2	0
8. Resplendent	30k	0	6	0
9. Glorious	28k	0	4	2
10. Exalted	40k	0	0	9