You may also try Dr. Susan Love's Breast Book or Jessica Queller's "Pretty is What Changes". For something different, Queller recommends "Cancer Vixen."
Here's how the intro from Random House reads ...
“What happens when a shoe-crazy, lipstick-obsessed, wine-swilling, pasta-slurping, fashion-fanatic, single-forever, about-to-get-married big-city girl cartoonist with a fabulous life finds . . . a lump in her breast?” That’s the question that sets this powerful, funny, and poignant graphic memoir in motion. In vivid color and with a taboo-breaking sense of humor, Marisa Acocella Marchetto tells the story of her eleven-month, ultimately triumphant bout with breast cancer—from diagnosis to cure, and every challenging step in between.
Francine, I hope your daughter's mother-in-law writes her own triumphant novel.