I learned the SVD first from Gilbert Strang's textbook " Linear algebra and its applications ".
Still, you can find jewels like " Calculus ", by Gilbert Strang, a Professor of Mathematics at MIT . You might also browse topics at The Mathematical Atlas.
This high quality photograph of academic Gilbert Strang was apparently taken by Wikipedia user Sijothankam, and seems like a potential candidate to become a featured picture to me ( somewhat tight crop at the top, admittedly ).