The Boston Public Library welcomed its new writer-in-residence, Annie Hartnett, during a reception. Hartnett, who lives in Newton, is the BPL’s 10th Children’s Writer-in-Residence, chosen on the basis of an excerpt of her proposed novel, about a family’s struggle to cope with the death of their mother, who drowned while sleepwalking. . . . Composer Laurie Anderson was the keynote speaker at last week’s Conference on International Opportunities on the Arts, held at BU by the TransCultural Exchange. (We don’t have a photo because she wouldn’t allow photographers.) Florian Dombois, winner of the 2010 German Sound Art Prize, created a temporary public artwork for the conference, which included a green laser shot through the Boston skyline. . . . Marie Claire’s Zanna Roberts Rassi joined fashionistas Erica Corsano and Joanna Humphrey to check out fall/winter 2013 fashions of Emporio Armani at Copley Place.