She was right; the librarian was delighted with my request, and was extremely lovely and helpful. We kept grinning at eachother like two people who have just discovered that their secret crush is mutual. (Actually, she reminded me quite strongly of loreid; she's about my age, with dark hair and fair skin, and has the appearance of a goth who is obliged to dress respectably for work.)
So she helped me to choose some suitable children's books which are simple to read without being dire. Pippi Longstocking yay. My new favourite word is julgransplundringskvällen, which means "the evening of the party celebrating taking down the decorations from the Christmas tree". The nice librarian also mentioned that they have a few English books if I get tired of working hard to learn Swedish and just want something to read. And she explained how the library system here is terribly convenient and mostly online and self-service and I can even order books from other libraries in the city, if I run out of the meager collection of English books in Älvsjö.
I have something to read. *happy dance*