This beginner's guide consists of comprehensive explanation, appropriate screenshots, tips, tricks, and best practices. It offers step-by-step instructions on building your own virtual environment from scratch, supported by the reasoning behind what you do. If you are a System Administrator who has to set up a virtual machine and want to use an open source tool to do it this book will prove invaluable. No prior knowledge of VirtualBox is required, but you should have experience with general system administration.