This week historian Ben Wilson and Faber & Faber launched a literary experiment, releasing "What Price Liberty?" as a pay-what-you-like e-book.

For the next six weeks, Wilson will offer the book on a website where readers can pay as much or as little as they like for the book. Following that introductory period, the book will retail for £14.99, the Guardian reports. When downloading a copy, tell us how much you paid in the comments--if you feel so inclined...

Here's more from the release: "'What Price Liberty?' explores how civil liberty was constructed, and has been re-thought and re-fought, in a bid to debate and determine the value we place on it today ... you can download the eBook and set your own price. How much will you pay?" (Via Digitalist)