Editing Yagura:SRD:Learning Spells (section)

====Adding Spells to a Spellbook====

Recording a spell in a spellbook requires you to have a casting ability score of at least 10 + the level of the spell.

Some classes that use a spellbook automatically gain spells upon earning a new level in the class, in which case the spell instantly appears in the spellbook, filling the appropriate number of pages. 

Once you understand a new spell, you can record it into your spellbook. The process takes 24 hours, regardless of the spell’s level, and requires that you cast the spell (either casting from a scroll or by preparing it first and casting normally). A spell takes up one page of the spellbook per [[Yagura:SRD:Spell Level|spell level]]. Even a 0-level spell takes one page. A spellbook has one hundred pages. Materials for writing the spell cost 100 gp per page unless the spell is gained for free through a class feature.

In most cases, spellcasters charge a fee for the privilege of copying spells from their spellbooks. This fee is usually equal to the cost of buying a scroll of that spell.