Angry Robot

Here's the Amazon page of a book I'd like to read

http://www.amazon.com/Human-Smoke-Beginnings-World-Civilization/dp/B002RAR3KG/ref=sr_1_1?ie%3DUTF8%26qid%3D1330714057%26sr%3D8-1

that came out 4 years ago, hardcover is $8.15, paperback is $6.40, Kindle ebook $20. WTF. “This price is set by the publisher”, and I’m guessing the publisher doesn’t like Amazon’s ebook business too much.