Every build I've seen marked "TWF" generally includes a +2 tome, rarely a +1 tome, but never no tomes.
Honestly, it's a little annoying XD I mean, it's not like I can't deviate from the build to put an extra point or two into dex, taking from another stat, but it's becoming a meme on this forum. "15 Dex +2 Tome".
Vaguely reminiscent of "No items, Fox only, Final Destination" (a Super Smash Bros Melee meme)
I'm not even talking about Paladins, either, where MAD makes them require a +2 dex tome to be able to maintain all of their competitive stats and still TWF, I'm talking about things like Barbarians (who then proceed to put the remaining points into Wisdom for will saves, or else boost their CON above 16/18 if Con Race) and Fighters.
I can understand +1 Tome since I've heard it's possible to find them by level 8, but +2 Tomes require either buying from the store or twinking your character with another higher level character.
Heck, I've heard of one Ranger saying to go 11 Dex +2 Tome to qualify for Dodge, which means not being able to take Tempest I until level 12. Because I don't think you can use a +2 tome until level 7, and you can't respec previous feats because Fred knows you didn't have 13 dex at that time.
As for the point of this post... well, I'm moreso pointing out a meme I've noticed. No one has to change anything because of it. I understand that for most people here, they have high level characters that can pass down +2 tomes and such, so it's not an issue for them.
This is just an observation. What you do with it is entirely up to you, and I'm not about to break down sobbing if anyone continues to makes 15 Dex +2 Tome characters.