Gösta Wendelholm donated his collection of paranormal literature in July 2012. The collection was picked up by Clas Svahn and Håkan Blomqvist.
Katarina Hampusson is currently cataloguing his books and magazines (about 3 linear meters). The collection included a complete collection of the 50 first issues of the German language magazine Implosion, which studied Viktor Schauberger’s theories on the qualitities of water and water power. The Wendelholm collection also included a lot of material on alchemy and ancient civilizations where Gösta Wendelholm had his own publishing business, G. Wendelholm AB, for many years