They explore the richness of her cultural and linguistic heritage, which spans the globe from Mexico to the Philippines. They defend with vigor and humor the color purple. And they analyze the insecurities of the letter ′h′ -- among other things.For thirty years, the National Poetry Series has discovered many new and emerging voices and has been instrumental in launching the careers of poets and writers such as Billy Collins, Mark Doty, Denis Johnson, Cole Swensen, Thylias Moss, Mark Levine, and Dionisio Martinez.