Having worked on a few data mining projects over the last few years, I’ve a reasonable understanding of how some of the product suggestion algorithms work. I was still a little surprised to see the list of things Amazon are suggesting for me. Along with some predicatable stuff, MySQL Cookbook and Wisdom of Crowds are Keeley Hazell’s 2007 Calendar and a Breaking Free From OCD Workbook. Clearly some people with my buying patterns are obsessing over page 3 models.