This document provides an overview of blockchain technology and its applications from the perspective of the Director of RMIT Blockchain Innovation Hub. It defines blockchain as a new economic infrastructure that allows records to be maintained in an append-only public ledger. Bitcoin is discussed as an early example that solved double spending using cryptography, peer-to-peer networking, and consensus algorithms. Potential applications mentioned include facilitating trade, creating new economies and cryptocurrencies, implementing smart contracts, and enabling decentralized governance models. Specific examples discussed are using blockchain for supply chain management, autonomous machines and devices, and digital law. The document concludes by outlining blockchain-related courses offered at RMIT to prepare students for work in the emerging blockchain economy.