Some book sources to get you started. This is not an exhaustive list!
Academic resources about children’s literature:
Children's literature in Sweden
Westin, Boel, 1991.
Barnboken i USA (Children’s Books in the USA, with English Summary)
Erisman, Fred; Sutherland, Zena; Hamrin, Margareta; 1986.
Barnbokens invandrare: en motivstudie i svensk barn- och ungdomslitteratur 1945-1980 (The children's book's immigrants: a motif study in Swedish children's and young people's literature, with English summary)
Thorson, Staffan, 1987.
Swedish children's books
Von Baumgarten-Lindberg, Marianne.; Isaksson, Ulrika; 2003.
For examples of children’s literature held in our collections, see:
The Swedish Americans
McGill, Allyson, 1997.
Keen eye children's stories
Lönroth, Elisabet, 1921.
Land of dreams
Nixon, Joan Lowery, 1994.
Hej, Texas goodbye Sweden: a Swedish boy in early Texas
Munson, Sammye, 1994.
Little folks' hour: stories and poems for children
Palm, Edith Cling, 1931.
In here, out there: English, Swedish
Winterberg, Philipp, 2015.