The Story of My Father by Sue Miller, 2003.

Wonderful memoir of Miller's dad and his descent into Alzheimer's. It brought back the year I spend caring for a woman with that horrible disease when I worked as a home health aide. The strange forms the memory loss takes (it's NOT just losing your keys--I wince whenever someone jokingly attributes normal memory problems to incipient Alzheimer's), the ways that personality stays and shifts, the frustration and denial pattern of the family--it's all heart-wrenchingly portrayed. There's also the wild story of the "cat house" that they renovated together--a beautiful old house that had been trashed by a recluse and his countless cats.