A few years back I picked up &quot;Russian Criminal Tattoo Encyclopedia Volumes 1-3&quot; on Amazon[1] for something I was working on and they are fascinating.<p>[1] <a href="http:&#x2F;&#x2F;www.amazon.com&#x2F;Russian-Criminal-Tattoo-Encyclopaedia-I&#x2F;dp&#x2F;0955862078&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.amazon.com&#x2F;Russian-Criminal-Tattoo-Encyclopaedia-...</a>