Theory on mothers, mothering and motherhood has emerged as a distinct body of knowledge within Motherhood Studies and Feminist Theory more generally. This collection, The Second Edition of Maternal Theory: Essential Readings introduces readers to this rich and diverse tradition of maternal theory. Composed of 60 chapters the 2nd edition includes two sections: the first with the classic texts by Adrienne Rich, Nancy Chodorow, Sara Ruddick, Alice Walker, Barbara Katz Rothman, bell hooks, Sharon Hays, Patricia Hill-Collins, Audre Lorde, Daphne de Marneffe, Judith Warner, Patrice diQinizio, Susan Maushart, and many more. The second section includes thirty new chapters on vital and new topics including Trans Parenting, Non-Binary Parenting, Queer Mothering, Matricentric Feminism, Normative Motherhood, Maternal Subjectivity, Maternal Narratology, Maternal Ambivalence, Maternal Regret, Monstrous Mothers, The Migrant Maternal, Reproductive Justice, Feminist Mothering, Feminist Fathering, Indigenous Mothering, The Digital Maternal, The Opt-Out Revolution, Black Motherhoods, Motherlines, The Motherhood Memoir, Pandemic Mothering, and many more. Maternal Theory is essential reading for anyone interested in motherhood as experience, ideology, and identity.