The spellbook panel (F5) list all spells currently known by your character. You can filter the list by magic school and spell level by using the check bubbles at the bottom of the panel. Right clicking any spell in the list displays more information on it. This includes: magic school, mana requirement, duration, a brief description of the spell, the components required and also the spell formula. Any spell that you no longer use can be removed from the list by selecting it and pressing delete.