FuzzyPenguinAMS's video on Calc 2 (inspiration for this video):
https://www.youtube.com/watch?v=M9W5Fn0_WAM
Some other great videos:
https://www.youtube.com/watch?v=rB83DpBJQsE
https://www.youtube.com/watch?v=vQluxMt1kxI&list=PLbYOkEbzW902s-ZkG8p8gFpiQa_iEM0M8
Non video sources:
https://openstax.org/books/calculus-volume-3/pages/preface
0:00 Introduction
0:17 3D Space, Vectors, and Surfaces
0:44 Vector Multiplication
2:13 Limits and Derivatives of multivariable functions
3:02 Double Integrals
3:44 Triple Integrals and 3D coordinate systems
4:57 Coordinate Transformations and the Jacobian
6:02 Vector Fields, Scalar Fields, and Line Integrals