I've just started "Group," a buzzy memoir about group therapy. Reese Witherspoon selected this as a Book of the Moment, and you can easily see why; in its toughness and its humor, "Group" resembles a major Witherspoon project, the movie "Wild." In "Group," our heroine, Christie Tate, discovers that she is first in her law-school class; almost immediately afterward, she catches herself wishing to die. She wishes someone would pull up and put a bullet in her brain. This is a compelling opening, and it's surely something most of us can relate to: a gap between an apparently sunny reality and a sordid "inner reality." (Whose Facebook page actually gives an accurate picture of daily life? Who among us has that Facebook page? Anyone? .....Anyone?) Tate speaks with a friend, who recommends a shrink, who recommends group therapy. And that's the setup for the book. Within a few weeks, Tate is speaking frankly about her struggles wit...