After all my interviews (especially the ones in which I failed) I wrote down what one would have needed to know in order to answer the questions. This guide is not a tutorial, it's not here to teach you. It's to recall topics, help memorize formulae, and maybe serve for quick reference during a phone interview or on the job itself.
Hope it helps you!!
Oh and I made some videos to walk you through it if you're into that. Good luck out there.