Continuing the approach of the previous editions, this book offers a conceptual approach to the legal issues implicit in family law. It describes the developments of: * Alternatives to marriage* Same-sex marriage* The expansion of assisted reproductive technology and gestational surrogacy Spousal and child support continue to be addressed at the state level through:* Expanding definitions of what constitutes property* The need to limit the duration of spousal support* The presumptive value of child support statutes Federal statutes have demanded greater support enforcement at the state level, and Congress retains control over ERISA, Social Security, and military benefits.