Anthropic pays up to $650,000 per year to specialists who truly understand deep learning. And this course by Nando de Freitas is available for free. This is a complete technical foundation on deep learning, which he taught at Oxford before moving to DeepMind.. https://www.youtube.com/playlist?list=PLE6Wd9FR--EfW8dtjAuPoTuPcqmOV53Fu