The collection includes correspondence with scientists from around the world; manuscripts with comments, especially from his early scientific research; books Alfvň wrote by himself and in collaboration with others; articles, reports, abstracts, research papers; notebooks and photographs from his extensive travels; a wide range of documents showing his interest and concern for atomic power, nuclear weapons, peace movement (Pugwash), sources of energy, overpopulation and world famine; press clippings, Nobel prize diploma and medallion, honary doctorate, etc.; material concerning his collaborations and colleagues especially in Sweden and USA; private papers such as photos and diaries/journals.