My first book called How to Hack Like a Pornstar (http://amzn.to/2iwprf6) achieved to solve a personal problem I frequently encountered lately : there are no good and up to date security books! I grew tired of hearing of ping of death attacks, metasploit and stacked based buffer overflow with no rop nor aslr, that I decided to write my own book about the subject. I wanted to make it as realistic as possible, so I simulated a real hacking scenario from start to finish: from creating the phishing campaign to breaking a Mainframe deep in the bank's network, using up to date tools (powershell tricks, custom payloads, etc.)    

Sparc Flow is a security researcher based in Europe. He works for different institutions (banks, airlines, insurers, etc.) as a chief penetration tester.
This entails looking for vulnerabilities, exploiting them in a stealthy manner and finding the data that will make EXCOM drop their jaws.
His first book "How to Hack Like a Pornstar" captures the essence of multiple situations he faced in real life and offers the reader a peak into the world of hacking and pentesting.