Aljosha Judmayr’s Tutorial on Cryptocurrencies at WWW 2016 was very well received.
The abstract is published in ACM DL. Aljosha Judmayer and Edgar Weippl. 2016. Cryptographic Currencies Crash Course (C4): Tutorial. In Proceedings of the 25th International Conference Companion on World Wide Web (WWW ’16 Companion). International World Wide Web Conferences Steering Committee, Republic and Canton of Geneva, Switzerland, 1021-1024. DOI=http://dx.doi.org/10.1145/2872518.2891066