Lectures this week covered up to slide 39 of the lecture slides.
The current topic is abstract types. These lectures covered various implementations of sets in Haskell to motivate the use of data abstraction which will be covered next week.
For now, a teaser: the secret to data abstraction is being selfish and possessive, like a 5-year-old child with a favourite toy. All will be explained next week!
The reading assignment this week is chapters 15 ad 16 from the textbook. Keep reading!