Martin Klasch turned me on to the Swedish blog Book Cover Lover a couple months ago. Started in May, there are already 224 posts to scroll through, the majority of them focusing on Swedish mid-century book covers and bindings from the blogger's own collection.
You may recognize designers like Per Åhlin and Rolf Lagerson from my previous posts Cocktaildags and Lord of the Flugornas. Unfortunately the binding designers are unknown, as publishers rarely print credits for the binding.
Höstvind och djupa vatten, cover by Rolf Lagerson, 1966
Devil's Harvest, cover by Rolf Lagerson, 1966
The Berlin Memorandum, cover by Rolf Lagerson, 1967
Bränt barn, cover by Rolf Lagerson, 1968
De röda kattorna, cover by Svenolov Ehrén, 1970
Odjuret, cover by Monica Schultz, 1972
Illustration for Tygtryck, 1954
Illustration by Per Åhlin for Sagor för barn över 18 år, 1964
Lord of the Flies, cover Per Åhlin, 1983
The Little Sister, cover by Olle Eksell, 1950
Much more Eksell in the post Big Broder Is Watching You