This document summarizes Bobby Curtis' presentation on using Oracle VirtualBox. It introduces VirtualBox as free cross-platform virtualization software. It outlines the requirements for running VirtualBox, describes common use cases like application development and testing disaster recovery scenarios. It provides instructions for downloading, installing, and configuring VirtualBox, accessing virtual machines, and tips for optimizing performance. The presentation also describes how to participate in the RAC Attack workshop for building a multi-node RAC cluster on a laptop using VirtualBox.