All My Puny Sorrows by Miriam Toews
From the bestselling author of Women Talking, a "wrenchingly honest, darkly funny novel" (Entertainment Weekly).
Elf and Yoli are sisters. While on the surface Elfrieda's life is enviable (she's a world-renowned pianist, glamorous, wealthy, and happily married) and Yolandi's a mess (she's divorced and broke, with two teenagers growing up too quickly), they are fiercely close-raised in a Mennonite household and sharing the hardship of Elf's desire to end her life. After Elf's latest attempt, Yoli must quickly determine how to keep her family from falling apart while facing a profound question: what do you do for a loved one who truly wants to die?
All My Puny Sorrows is a deeply personal story that is as much comedy as it is tragedy, a goodbye grin from the friend who taught you how to live.