DDIA = Designing Data Intensive Applications<p>This book has already become legendary but a bit less known is the set of lectures from Martin Kleppman on distributed systems.<p>Apart from the great lecture notes, there are also videos:<p><a href="https://www.youtube.com/playlist?list=PLeKd45zvjcDFUEv_ohr_HdUFe97RItdiB" rel="nofollow noreferrer">https://www.youtube.com/playlist?list=PLeKd45zvjcDFUEv_ohr_H...</a><p>The course is pretty concise but Martin is a great teacher and the quality is superb as is the book itself.