New Craftable tomes - Bonus Feats!

To make building PCs a bit more flexible as far as non-epic feat selection goes, it could cut down on relevelling and open up some possibilities if some of the basic non-epic feats could be gained by using magical tomes to 'teach' the feats.

For example, we currently have the 'Advanced Concentration Techniques' book, which now grants the 'Skill Focus (Concentration)' feat by a LETO edit. Its a wonderful thing, and the feat is in no way unbalancing at all.

I would like to suggest additional tomes like this be craftable so players have even more build customization options since they could get a book for certain feats, and spend their levelup feats elsewhere.

I was thinking of the following feats:

Blind-Fighting
Toughness
Dirty-Fighting
Expertise
Power Attack
Called Shot
Weapon Finesse
Weapon Proficiency (Martial)
Weapon Proficiency (Exotic)
Armor Proficiency (Light)
Armor Proficiency (Medium)
Armor Proficiency (Heavy)
Shield Proficiency
Skill Focus: Spellcraft
Silent Spell
Still Spell
Empower Spell
Maximize Spell
Quicken Spell
Spell Penetration
Combat Casting
Enchant Arms & Armor
Imbue Spell Focus
Scribe Scroll
Forge Jewelry
Enchant Item

With respect to pre-requisits for some of the feats, I believe the scripts can check for them - or in some cases perhaps ignore them if the feat Tome is rare enough or costly to craft.

This also may give melee PCs a little bump - although not much - in regards to fitting in feats without sacrificing Attack Bonus points that will have a greater impact on epic level content.

I was almost about to say how ridiculously OP that could get us, but then I remembered all the Aenea-specific stuff we already have.

I really like this idea. Except, as I see it, it generally benefits mage types more than fighter-types. I don't have a suggestion to remedy this, though.