Digital Outback Photo has published 'The Art and Craft of HDR Photography' by Uwe and Bettina Steinmueller. The 100 page e-book, written and published by the authors of dpreview.com's 'The Art of HDR' series of guides, can be downloaded as a printable pdf. It is available for an introductory price of $15.95, rather than the usual $19.95.

Press release:

The Art and Craft of HDR Photography

We use HDR since 2004 and wrote this book about our personal experience creating HDR images.

  • Learn the principles of HDR Photography
  • About Dynamic Range
  • Shooting HDR images
  • About optimal image alignment
  • About CA (chromatic aberration) removal
  • Handling of Ghosting
  • Tonemapping
  • Creating natural or more grungy looks

More info can be found here (including the full table of content):

http://www.outbackphoto.com/CONTENT_2007_01/section_news/DOP_Ebooks/dop2011_04/index.html

Pricing: $15.95 intro price (regular $19.95)