Released in 2011, someone just recommended this book to me the other day. After digging into the sample, I ended up snatching it up. As a Prime member of Amazon.com, I acquired it for free, however the Kindle Edition hovers right around the $6 level.
This book is totally geeky and a fun read, particularly for those who a) like to read, and b) have always wanted to read a book that was so clearly written for technology workers.
Get it on Amazon.com: Superliminal (Dev Manny, Information Technology Private Investigator)