If you are fascinated by crime and criminals, this is a great book to read. It centers around Lonnie Athens, who pioneered the concept of violentization--the idea that anyone, regardless of upbringing, socio-economic status, or psychiatric standing could become a violent criminal if exposed to four parts of a basic process.
Although the author at times seems a bit gushing over Athens, it is a fascinating read. Some parts, such as the phantom community thesis, could use better explication.
But if you're not a CJ major, this is a great book that will introduce you to the kind of theory you can knaw over in your mind while standing in line at the grocery store.