Monad Transformers by Tony Morris
What are monad transformers? Why would I use them? Why do they exist? Why do monads get transformers, but others do not?
In this talk, we will first revisit monads, then take the necessary steps to re-discover why monad transformers have come to exist and in what situations they might be used. As with all things monads, a bit of mythbusting will be necessary too. After this talk, you should be equipped to explain the reason monad transformers are a useful tool, applicable to many every-day programming situations.