Kingdoms of Amalur: Reckoning

I'm working on cataloging all the locations for both trainers and backpack upgrades. I have not completed the game yet so this list is only up to date for as far as I currently am.

The following is a work in progress, please leave and comments, suggestions, corrections, or additions below.


BACKPACKS
Backpacks give you +10 to your inventory space.

Backpack Upgrades:
Rikka Egest - The Corner Shop, Gorhart (Odarst)
Wil Donall - Scholia Arcana, Rathir (Tywili Coast)
Riona Helt - Asker's Alley, Ysa (The Sidhe)

TRAINERS
Trainers can permanently increase the attribute of one of your skills for a fee. Each trainer can be used only one time, and you can only train with a trainer if you within their trainable skill range. For basic trainers you must have skill level 0-3 and for advanced trainers, you must have a skill level of 4-6.

Alchemy:
Jakasen - Ysa - Basic (0-3)
Molly Janick - Emaire (Forsaken Plane) - Basic (0-3)
Savant Red Thombrum - Rathir (Scholia Arcana) - Advanced (4-6)

Blacksmithing:
Halder Rodrick - Shieldring Keep - Basic (0-3)
Holte Flenn - Ysa - Basic (0-3)

Sagecrafting:
Savant Raina Senjorn - Ysa (need delving hall key from Scholia Arcana Embassy) - Basic (0-3)
Viscount Setter the Allseer - Ysa (Lower or Font depening on a quest) - Basic (0-3)
Savant Itran Sconn - Rathir (Scholia Arcana) - Advanced (4-6)

Lockpicking:
Thorvald Ulfsson - South East Lorca Rane - Basic (0-3)
Tefroy Tarion - Tiren's Rest - Basic (0-3)

Dispelling:
Artan Caid - Rathir (Scholia Arcana) - Advanced (4-6)
Saramer (Trellis)- Ysa - Basic (0-3)

Mercantile:
Elayen Dark - Star Camp - Basic (0-3)
Eormen Gest - Moon Camp - Advanced (4-6)

Detect Hidden:
Arnick Arduna - Gohart - Basic (0-3)
Ambassador Odvar - Ysa - Basic (0-3)

Persuasion:
Ellova - House of Ballads - Basic (0-3)
Magessa Ohr - Rathir (Upper District) - Basic (0-3)

Stealth:
Hiron Karet - Star Camp - Basic (0-3)
Inthaels Scyld - Moon Camp - Basic (0-3)

http://www.ign.com/wikis/kingdoms-of-amalur-reckoning/Trainers

Trainers are NPCs who can increase one skill you have by a factor of 1, but only if you are of a certain level of skill; if you are too skilled (or not skilled enough), you cannot learn from trainers. Note that unlike Skill Books, trainers are not randomized (except for one or two special cases); hence, so long as you meet the requirements (or re-weave your destiny) and have the gold to spend, you can always use them to improve your skills.

HOT TIP

Keep trainers constantly in mind, as you can use gold to train yourself before you exceed a trainer's maximum skill level. If you miss taking advantage of a trainer, you need to Fate-weave yourself to get the chance to purchase the skill point, and that gets expensive.
Alchemy

(0 to 3) Lyceum Grove in City of Ysa
(0 to 3) Blue Bear Tavern in Emaire (western Forsaken Plain)
(4 to 6) Scholia Arcana academy in Rathir
Blacksmithing

(0 to 3) Shieldring Keep
(0 to 3) United Merchants Delegation in City of Ysa
Detect Hidden

(0 to 3) Gorhart Inn
(0 to 3) Embassy Hall in City of Ysa
(4 to 6) Sun Camp in Detyre
Dispelling

(0 to 3) Eric Porthe at the Adessa Walls (evening required)
(0 to 3) Trellis in the City of Ysa
(4 to 6) Scholia Arcana academy in Rathir
Lockpicking

(0 to 3) Throvald Ulfsson in southeastern Lorca-Rane
(0 to 3) Tefroy Tarion in Tirin's Rest, a town in Galafor; events in Lock and Key must be completed
(4 to 6) Hospitaler Quarters in Adessa Walls
Mercantile

(0 to 3) Star Camp in Dalentarth
(0 to 3) Anton Demian in northern Alserund
(4 to 6) Moon Camp in the Plains of Erathell
Persuasion

(0 to 3) House of Ballads
(0 to 3) Rathir, Upper City
(4 to 6) Adessa Isles
Sagecraft

(0 to 3) Viscount Setter the Allseer City of Ysa; gardens or Trellis
(0 to 3) Delving Hall in the City of Ysa
(4 to 6) Scholia Arcana academy in Rathir
Stealth

(0 to 3) Star Camp in Dalentarth
(0 to 3) Moon Camp (0 to 3) in Plains of Erathell
(4 to 6) Hospitalis Quarters in Adessa Walls
You will want to use trainers when you can, since they are essentially an obtainable skill point waiting to be purchased. Don't forget, you normally earn a maximum of 40 skill points for your character -- points from trainers and skill books are considered valuable bonuses.

If you missed using a trainer, you may re-weave your fate, adjust your skills to meet a trainer's requirements to obtain the skill point you missed.

Note that trainers appear on your map (local and global) once you've discovered the location where they live. Trainers appear as little sword icons (and the symbol is annotated on the map legend -- except for Adessa which has trainers, but only appear once you venture to the local map).

sticky

He is in the Scholia Arcana, the Upper District or Rathir. When you get to the upper district, head to your left down the long walkway over a bridge to enter Scholia Arcana, then straight ahead the frontmost door.