I first read this book in that late '70's or early 80's, so my review is based on memory streatched back 20 to 30 years ago. The fact that I remember any of it is tribute to it's power.
It's the story of a family in the South: Father is a military maniac, mother is a traditional Southern housewife, daughters Emily and Sally are trying to find their own place. Emily transforms from Southern Girl to Preppy College Girl, to Nothern Housewife, with stumbles and successes along the way, as she searches for who she is and where she fits in. Sally progesses from Southern Debutante to Cheerleader to Happy Homemaker....or is she so happy? Entwined within the lives of the White Southerners are the Black Southerners, and how they live alongside these privileged Whites, in the 1960's Southern small town.
It was written as a contemporary novel 30 years ago, and it is still relevant today, not only as a historical novel....it is still contemporary, with truths about people that will never be dated.
Read it and enjoy it.