Meh. I don't think this book was very well presented. From the dust jacket material I thought it would be a collection of stories about cold cases and how, after years or decades, they were solved (or not solved). But, while such stories were certainly in there, the book was more like a collection of lists: lists of reasons why cases become cold, reasons why a cold case can suddenly heat up again, new advances in forensic science that help cold cases, ways to re-activate a cold case, etc. There's nothing wrong with this and much of what the book said was interesting, but it wasn't what I was looking for. ( )