This week, James is joined by friend of the show Marc Mercuri, Program Manager on the Azure Blockchain Development Kit Team, who introduces us to the world of blockchain. He shows us a full end to end scenario of why and how you would use blockchain in applications. He then walks us through the new Azure Blockchain Development Kit that simplifies development using blockchain for web and mobile with some fantastic Xamarin mobile apps. * [Block Talk on Channel 9](https://channel9.msdn.com/Shows/Blocktalk) * [Azure Blockchain Development Kit](http://aka.ms/bcdevkit) * [Azure Blockchain Workbench](https://azure.microsoft.com/features/blockchain-workbench/) * Find James on: [Twitter](http://twitter.com/jamesmontemagno), [GitHub](http://github.com/jamesmontemagno), [Blog](https://montemagno.com/), and his weekly development podcast [Merge Conflict](http://www.mergeconflict.fm/). * [Follow @JamesMontemagno](https://twitter.com/jamesmontemagno) * Never Miss an Episode: [Follow @TheXamarinShow](https://twitter.com/thexamarinshow)