Seder Nashim - the Order of Women - contains the laws governing marriage in all its halachic ramifications. Tagentially, the laws pertaining to vows are also dicussed prominently. Yevamos - childless, widows, incestuous unions, agunos (women that have been refused gets-divorces by their ex-husbands).
The ArtScroll Mishnah Series with commentary Yad Avraham brings the text to life as it is developed and clarified by contending minds in the study hall. The commentators infer and prove, the Gemara interprets and enlightens, nuances of classic Talmudic discussion and exegesis are brought out.