A book named Randi's Prize might be expected to contain quite a lot of information about Randi's prize, the Million Dollar Challenge offered by stage magician James Randi. In fact although Randi's views, and those of other likeminded sceptics are central to the book, the Challenge itself was not my main interest. I use it more as an image for sceptical attitudes. A book about Randi's prize itself would only make sense to people who already fully grasp the issues that my book tried to explain.
But there is some information out there about the Challenge. To get the view of Randi and his associates about its aims and operational details, see the article by Jeff Wagg on Randi's website. This Wikipedia article contains a lot of background detail.
To understand how misleading and ultimately irrelevant the Challenge is, see this well-researched article by Greg Taylor of The Daily Grail. It was written in 2008 after Randi announced that the Challenge would be withdrawn two years later, although its termination was subsequently rescinded.
A series of pieces in a similarly sceptical vein is by Michael Prescott on his blog.
This tetchy email exchange between Alex Tskaris and James Randi is typical of the way potential applicants are handled. See also this entertaining description by an audio buff who tried to apply for the prize.