Clicking this link downloads The Textbook of Digital Photography.

The Textbook of Digital Photography
(screen resolution version) (8 MB)

To open the PDF file click the link above and then save the document to your own system. It's sometimes easier, especially with large files such as this one, to right-click the link and then select Save Target As... to download it without opening it.

If you have problems please let me know. Most problems come from using older versions of Acrobat Reader. Get the latest version free at www.adobe.com.