I just got an email offer for a free digital copy of “Learning Network Forensics” by Samir Datt (2016). This is a PACKT book that was just released this year. It is currently selling for $49.99 on Amazon. I have not read it yet, but it has been on my reading list. Here is link I used to get it.
Full Disclosure: I do not benefit from this in any way. This was an offer I received on a daily email digest from “The Hacker News” website. Tradepub is the company actually giving it away. I’m pretty sure the link above somehow benefits “The Hacker News” but for free, I don’t mind.