PlaneShift implements a system of character progression though skills, training and progression points.
There are basically four stages of learning a new skill, or improving upon an existing one:
Once you have gained some Progression Points through experience, you can use trainers to improve your skills.
To train, walk close to an NPC, right-click on them, and click the Train icon that appears. Alternatively, target them and enter the /train command in the Chat Window or click the Train button in your Shortcuts. If the NPC is a trainer, a training window skill appear with all the skills listed that the NPC can train.
When this window appears, click on the skill you wish to improve and click the Buy Skill button at the top of the training window. If you have sufficient Progression Points and capacity for more theoretical knowledge, you will advance in that skill's theory.
A character can choose to learn one or more "groups" of weapons. Having access to the group gives the same skill also to all weapons contained in that group. This skill is used in combat when fighting with a weapon of the selected group. There's no limit in the number of groups a character can learn.
Every weapon type has a different efficency based on the armor (skin, clothes, chain, plate, etc.) that it hits. So a falchion can be more effective on a certain monster or opponent than a mace, even if the mace has an higher base damage.
A character can choose to learn one or more "groups" of armor. Having access to the group gives the same skill also to all armors contained in that group. This skill is used in combat when fighting with armor of the selected group. There's no limit in the number of groups a character can learn.
Each armor has a base penalty to agility. Increasing your skill in using armor you can drop the penalty. You can get the penalty to zero only with light armor. Other types of armors will always give you some hindrance.
Groups are: Light armor, medium armor, heavy armor and shield handling.
Arcane Lore skills express the knowledge in manipulating the glyphs to cast spells and to discover new ones. There is one skill for each Way.
There is much more information on these skills in the Magic section.
You will see many skills listed in your Skills Windows than are listed above. The reason for this is that many of the skills are not yet active.