@AstonJ You mentioned Kent University’s MOOC. There is another YouTube channel by Kent University and it has three of Erlang’s master classes.
- Erlang Master Class 1: Functional Programming by Simon Thompson
- Erlang Master Class 2: Concurrent Programming by Joe Armstrong
- Erlang Master Class 3: OTP Behaviours and Releases by Francesco Cesarini
Joe Armstrong doesn’t need an introduction. Francesco Cesarini and Simon Thompson co-authored Erlang Programming in 2009 and Erlang by Example in 2011, and Francesco Cesarini also wrote Designing for Scalability with Erlang/OTP in 2016.