Here are just three books that will be helpful to family members of someone with an eating disorder and body image issues:
Andrea's voice – Silenced by bulimia, by Doris Smeltzer with Andrea Lynn Smeltzer
why she feels fat – Understanding Your Loved One's Eating Doisorder and How You Can Help, by Johanna Marie McShane, PhD & Tony Paulson, PhD
Reflections of me: Girls and body image, by Kris Hirschmann
As always, we are glad to make other suggestions for books that may be helpful to your situation in our sessions.