The following is a list of books you can find at the Training Librarian and what they cost.
Title
Controlled Riding
Crawling
Diving
Khurite Scout Armor
Khurite Splinted Armor
Mounted Archery
Resistance Swimming
Swift Riding
Skill
Movement
Movement
Movement
Crafting
Crafting
Combat
Movement
Movement
Cost
2g 50s
2g 50s
2g 50s
50s
2g 50s
10g
2g 50s
10g