I seriously hope you haven't underestimated me to this degree.
So in conclusion have an example of what should not be done:
Tome of Fiends at [unixtime wrote:1149050648[/unixtime]]
Carnage
Special: All of your damaging spell-like abilities do vile damage.
Level, Benefits
1 Seething Eyebane
3 Blade of Fear and Pain
5 Lahm’s Finger Darts
7 Blade Barrier
9 Fleshshiver
11 Disintigrate
13 Flensing
15 Horrid Wilting
17 Mass Harm
19 Implosion
The spells here in bold would, to anyone without the appropriate (read: extraneous library) splat book, remain unknown.
As a reader, the player simply wouldn't have a clue what these mean in intention or purpose without the right book(s).
What could be done is, next to each non-core spell, place a similar spell found in the PHB or SRD.
Doing this would make such game material more accessible to a larger audience.
Moving on now.