The Skeleton Crew (Non-Fiction) by Deborah Halber

I'm not known for reviewing non-fiction but sometimes I read a book that makes such great background material / research for PI writers I make an exception. And hey, there's a blurb by PI writing star Sue Grafton on the cover.
In this book we read how amateur investigators manage to help solve crimes while surfing the web.
The author details in an engaging almost thriller-like style how citizens helped give the Trent Girl a name and solved other mysteries. The focus isn't just on the cases though, we also get to know the dedicated sleuths that dedicate their free time to these investigations.
An interesting, easy to read book that will inspire my fellow writers for sure, written by a true crime writer that Vance Custer would look up to.