When I picked up this book at my favorite bookstore, I thought this was written by an undertaker, describing how she prepares corpses before they are coffined. However “The Gentle Art of Swedish Death Cleaning” by Margareta Magnusson is not at all about dead people. It is about people cleaning their houses at an elder age. Or – tout court – by anybody who wants to sort out her stuff. “The Gentle Art of Swedish Death Cleaning”, Margareta Magnusson, Canongate, 2017   Margareta Magnusson being “between eighty and a hundred” is a graphic artist from Sweden who lived all over the world. In this memoir she is cleaning her apartment, sorting out what stuff she still wants to keep, what she wants to give…