The book "Zablocki v. Redhail" offers a comprehensive analysis of the landmark ruling by the U.S. Supreme Court from 1978. It addresses the legal implications of the case, which centers on the equality of rights for non-custodial parents in Wisconsin regarding marriage. The case challenged Wisconsin statutes that required non-custodial parents to obtain court approval to receive a marriage license unless they were current on their child support payments. This regulation was viewed as a violation of the Equal Protection Clause of the 14th Amendment. The book draws on articles from Wikipedia and other free sources, providing an easily accessible overview of the legal aspects and societal impacts of the ruling.