1.3 What do I get for my money?

If you buy this book, you get:

• The current content in four DRM-free versions:
  • PDF file
  • ZIP archive with ad-free HTML
  • EPUB file
  • MOBI file
• Any future content that is added to this edition. How much I can add depends on the sales of this book.

The current price is introductory. It will increase as more content is added.