I just got "Rise of the Footsoldier" by Carlton Leach and I could say from my own experience that this book is a must-read if you wanna know how crime goes in Europe. I also recommend the movie if you don't like reading. Carlton is an ex-hooligan with strong relationship to organized crime. He is a tough guy and 110% authentic. See pictures below.
His other book "Muscle" should be recommended as well.