I loved his videos, personally. I had some familiarity with basic category theory and functional programming, but Bartosz does a really good job of explaining e

I loved his videos, personally. I had some familiarity with basic category theory and functional programming, but Bartosz does a really good job of explaining everything without prior math knowledge. Compared to all the introductory books people recommend, he's an excellent teacher. On the subject of it improving your coding, not so sure how much you could measure that. I think it's usually preferable to have a strong understanding of the basis of what you're working with, however, as it gives you some confidence to think critically about things you would usually just accept as fact.