The Character Sheet is the primary source of vital information regarding how and why your character performs exactly the way that it does; This information has been broken down by the various tabs on the character sheet (Stats, Skills, Feats, Spells, Enhancements, and Crafting).
Each tab has a very unique set of information, and using the pages below you'll find plenty of links to help you navigate directly to the information you require, this is essential help in the Newbie guide but still relevant to all players or those who are experienced.