More limited than its title would suggest, this book deals with the enforcement and modification of alimony and support payments and visitation and custody rights. Very important is the explanation of how much easier it has become in recent years to enforce one's rights in these areas, as laws, particularly those dealing with custody rights, have been strengthened and enforcement agencies have been set up. For the most part, the authors assert, lawyers are not needed. Many case histories are included to provide guidance for custodial parents seeking enforcement as well as for noncustodial parents seeking modifications. Recommended. Anne Twitchell, Mote Ma rine Laboratory Lib., Sarasota, Fla.