This book has been produced to celebrate the 40th anniversary of the European Group (EG) for the Study of Deviance and Social Control. I have participated in 20 of the its conferences in many interesting places in Europe, often in conflict zones due to the group’s tradition of solidarity and activism. I have always found the conference an inspiring and welcoming forum which has contributed greatly in shaping me as a criminologist. I carry with me warm and sometimes funny memories from these events, from people who have become my friends, and from some who are no longer with us, such as Louk Hulsman, who would always greet us all with his warm smile and special laughter, and from Stan Cohen, to whom this book is a tribute, and whom I first met at my very first EG conference, in Prague in 1993. My hope is that green criminology will have its place in the conferences to come, and that the group will continue to contribute to expanding the field. I dedicate this volume to Vilde and to the children and future children of the contributors to this book, in the hope that during their lifetime this world will be a better place, for all.