"The sonnet is the strictest form I have behaved in, and only then by pretending it wasn't a sonnet," Frost once wrote to Louis Untermeyer. Frost wrote his sonnets in couplets, triplets, and terza rima; frequently, he combined elements of the Italian and English forms. His genuis was in incorporating diverse styles, renewing reader interest in the form while retaining its accessibility. Several of the sonnets discussed are generally recognized...