This extremely well-produced and informative little book (ISBN N 978 91 633 1942-6) is an absolute must-have reference for anyone having even a perpipheral interest in the fascinating and often surprising history of model engine development in Sweden. It was compiled by Ulf Carlén, who has gone to a great deal of trouble to produce a book of lasting value. As the title might suggest, the book is very much a Swedish equivalent of Tim Dannel's "American Model Engine Encyclopedia", having a similar format in which all of the various engine ranges and specific models which have appeared in Sweden over the years are presented in alphabetical order. Hence a given engine or marque is very easy to find. 

The lavishly-illustrated text is printed on high-quality paper with a very durable glossy cover. This book should easily last a modelling lifetime! The text of the book is presented in English, making it widely accessible to readers from many parts of the world.  I do not know if there is a Swedish-text version. 

When contacted in early 2015, Ulf advised that he still had copies of the book available for sale but I don't know if this remains true today.