This is extra material that either didn't make it into the finished book or is an alternative or larger version of something that's already there. Feel free to view or download any of it, the majority being JPG or GIF graphic files with the exception of a PDF file for The Enhancer instructions. Clicking on an item will open it up in a new window unless your browser is set to automatically view a specific file type, in that case if you want to download something then Right Click on the item and select "Save Link As" from the Pop Up menu or whatever similar function your browser has.