Switzerland needs more block chain experts
— Swiss Federal Councillor Johann Schneider-Ammann

21 Lectures' mission is to bring more developers to the Bitcoin ecosystem. Lectured by the worlds best Bitcoin developers, our courses teach developers the fundamentals to work with Bitcoin & related technologies.



Next Courses

Advanced Course: 4 - 7 March, 2019

Beginner Course: 27 - 28 June, 2019




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Education Partner


Our Education Partner provides us with the world's best experts in Bitcoin, cryptography, distributed computing and software toolkits to teach the next generation of developers.


Ecosystem Partners


Our Ecosystem Partners are leading companies in the finance, Bitcoin and IT industry.