Translation of the textbook "Consumer Behavior - Classical and Contemporary Perspectives" from Swedish to English. The book is authored by Karin M. Ekström, Mikael Ottosson and Anders Parment. Knowledge of consumer behavior is central to the subject of marketing and the book will be of interest to courses at universities and colleges that focus on marketing and commerce, but also to practitioners who are in need of knowledge in this area. The retail sector, which employs around 500 000 individuals, needs to increase the level of training and the book will contribute to this. Examples from commerce are given throughout the book.