You can learn new skills here, as well as accept quests from the Guildmaster.
Learn Skills - Spend skill points to learn skills. Skills are divided into class-specific skills and skills common to all character types. You cannot learn skills for which you do not meet the requirements.
Quests - Choose to accept new requests that have been submitted to the guild. When you complete a quest and report it, you will be rewarded with money, experience points, skill points, and treasure art.