This document provides an overview of the Hyperloop high-speed transportation system. It discusses problems with current transportation modes that Hyperloop aims to address like traffic, pollution, and resource depletion. Hyperloop uses near-vacuum tubes and magnetic levitation to enable passenger pods to travel at over 1000 km/h. It also reviews related work on tube construction, pod levitation and propulsion, and compares leading Hyperloop companies developing the technology. The document concludes that while still early-stage, Hyperloop has the potential to revolutionize transportation if safety challenges can be overcome through continued research.