Hunter's Lounge Rune Library is located in the forest, a few screens west to Britain Cemetery. The library contains runes to more than one thousand places, all over Sosaria. Runes to Felucca, Malas and the Tokuna Islands are located on the ground floor. First floor is dedicated to the Trammel runes.
You'll also find books for the Grizelda the Hag, Naturalist and Elwood McCarrin quests on the ground floor.
The treasure map runes follow the system known from Stratics. You'll find a guide on the link above.