Written by Bina Ramamurthy, award-winning creator of the blockchain Coursera online course, Blockchain in Action begins with the essential principles of blockchain and teaches you to create your own decentralized apps. From the start you’ll go hands-on with the Ethereum blockchain, designing and coding your first smart contract with the JavaScript-based Solidity language. This smart contract will become the foundation on which you will build advanced functionality, including trust validation, a web UI for better user access, and privacy and security features that enable deployment on a public blockchain network. By the time you’re finished, you’ll be fully prepared to build useful blockchain applications. what's inside How blockchain differs from other distributed systems Smart contract development with Ethereum and the Solidity language Web UI for decentralized apps Identity, privacy and security techniques On-chain and off-chain data storage