Re: Getting Started with Deep Science
1)Andrew Ng's coursera deeplearning specialisation takes bottom-up approach which means he explains things from scratch and builds things on the base concepts introduced.
2)Jeremy Howard's fast.ai course does things from the top down. So you get into action first and learn things later. This is more suitable if you come from a programming background
3)Siraj Raval has his own way of explaining complex things in an engaging way. You can check out his videos on youtube