This document provides an overview of how blockchain and IoT technologies intersect. It introduces the topic by explaining how blockchain can be used to secure and verify the data generated by connected IoT devices. The presentation then outlines that it will discuss what blockchain is, how it can benefit IoT, challenges, use cases, and conclusions on their combination. It welcomes the audience to explore this cutting edge topic and how these technologies can create a more secure, transparent and efficient system for interacting with connected devices.