This is a Swedish driving licence book (Körkortsboken) published by Sveriges Trafikskolors Riksförbund (STR). It is a comprehensive guide for obtaining a driving licence in Sweden. The book covers all aspects of driving theory and practice, including traffic laws, road signs, driving techniques, and vehicle maintenance. It is a valuable resource for anyone who is learning to drive or who wants to refresh their knowledge of Swedish traffic regulations. This edition is number 12.