Extra Spell( Tome and Blood: A Guidebook to Wizards and Sorcerers, p. 40)
You can learn one more spell.
Spellcaster Level 3,
You learn one additional spell at any level up to one level lower than the highest-level spell you can cast. Thus, a 4th-level sorcerer gains a new 0-level or 1stlevel spell, expanding his repertoire. A 4th-level wizard can likewise learn an extra 0-level or 1st-level spell, but since wizards learn spells far more easily than sorcerers, this feat is of less use to her.
You can gain this feat multiple times. Each time, you learn a new spell at any level up to one lower than the highest-level spell you can cast.