My book is finally out: Using the HTML5 Filesystem API, "A True Filesystem for the Browser"

Until now, web applications have been unable to organize binary data into a hierarchy of folders. That has changed with the advent of HTML5. With this book, you'll learn how to provide your applications with a true file system that enables them to create, read, and write files ands folders in a sandboxed section of the user's local filesystem. Author Eric Bidelman provides several techniques and complete code examples for working with the HTML5 Filesystem API.