I've been keeping an eye out for good introductory graphics and linear algebra material.

"3D Math Primer for Graphics and Game Development" looks absolutely fabulous, and it's all available online: gamemath.com/book/

Thanks to @ZPostFacto and Ian Parberry for making this available!
twitter.com/ZPostFacto/sta…

@ZPostFacto Also, TIL that Americans pronounce it "primmer"