From the back of the book: Fringers Guide
The Few. The Proud. The Criminally Insane.
They're determined by nature, violent by design, outcasts by choice, and they're everywhere.
In this book, you'll meet some of the galaxy's most bizarre and dangerous fringer groups. They're eccentrics and fanatics, theorists and terrorists, and the only thing they have in common is that they're all on the outside breaking in.
These are the groups Fleet warned you about - but you didn't listen.