Just finished “Falling Apart in One Piece,” a memoir by Stacy Morrison. Morrison, the Editor-in-Chief of Redbook Magazine, writes in intimate terms about her divorce, and about moving forward as a single parent to her young son. Most movingly, she is committed to a peaceful divorce process and post-divorce co-parenting relationship with her ex-husband. Not surprisingly, when divorce negotiations stall, they turn to a mediator for help and are able to finish up the process with little acrimony.