where to learn upholstery basics

[IvelDesigns]

so i'm starting to plan the interior for my truck and am planning to do as much of it myself as i can. I was curious if anyone has a link or 3 that they'd like to share with me for sites that give info on the "how to's" of upholstery work.

I'm sure i could figure out a basic door panel pretty easily, but a i'll probably leave the seat to a professional. I'd just like to learn some of the tips and tricks of building console's and door panels and what not.