The Vault 2 Book plugin enables users to transform their Obsidian vault, or selected portions of it, into a single consolidated file that can be exported as a PDF, effectively creating a book. This tool simplifies the process of compiling interconnected notes into a cohesive format, preserving the structure through links. Users can generate books from the entire vault or specific folders and have options for customization through plugin settings. The plugin also provides commands to manage and remove generated books, making it a versatile tool for publishing or archiving content.