electronic books
It's obvious: too much information, too few trees. Fortunately, there is a solution — electronic books in PDF format.
PDF is an open document standard, widely adopted by business and governments worldwide, with comprehensive multi-media features accessible by any web browser.
- Easy downloads: free for sponsored works, nominal fee for premium titles
- Single file contains everything — video, images, text, interactive features — in a secure download package
- Content uniquely identified with an Electronic Standard Book Number (ESBN)