Part I: Who Runs? What if Women Won't Run? Exploring Gender Gaps in Elite Political Ambition / Karen O'Connor and Alixandra B. Yanus -- Who Runs? Data from Women Trained as Candidates / Rachel Bernhard, Shauna Shames, Rachel Silbermann, and Dawn Teele -- Political Ambition, Structural Obstacles, and the Fate of Republican Women / Malliga Och -- Who is Stacey Abrams? An Examination of Gender and Race Dynamics in State Level Candidacy / Jamil Scott, Kesicia Dickinson, and Pearl K. Dowe -- Part II: Why Run? Editors' Headnote to Part II. Ambition for Office: Women and Policymaking / Sue Thomas and Catherine Wineinger -- From Civic Mindedness to Electoral Politics: Citizen Advisory Committees and the Decision to Run for School Board / Rebecca E. Deen and Beth Anne Shelton -- Youth National Service and Women's Political Ambition: The Case of Teach For America / Cecilia Hyunjung Mo and Georgia Anderson-Nilsson -- Part III: Why Not Run? Editors' Headnote to Part III. The Uneven Geography of Candidate Emergence: How the Expectation of Winning Influences Candidate Emergence / Heather L. Ondercin -- How Political Parties can Diversify their Leadership / Alejandra Gimenez Aldridge, Christopher F. Karpowitz, J. Quin Monson, and Jessica Robinson Preece -- Late to the Party: Black Women's Inconsistent Support from Political Parties / Nadia E. Brown and Pearl K. Dowe -- Women's Political Ambition and the 2016 Election / Chris W. Bonneau and Kristin Kanthak -- Part IV: How Nonprofits Help Women Run. Editors' Headnote to Part IV. Women Candidate Recruitment Groups in the States / Rebecca Kreitzer and Tracy Osborn -- Are you Ready-to-Run [Trade Mark sign]? Campaign Trainings and Women's Candidacies in New Jersey / Kira Sanbonmatsu and Kelly Dittmar -- Pieces of Women's Political Ambition Puzzle: Changing Perceptions of a Political Career with Campaign Training / Monica C. Schneider and Jennie Sweet-Cushman -- Women Running In the World: Candidate Training Programs in Comparative Perspective / Jennifer M. Piscopo -- Part V: The Special Role of Money. Editors' Headnote to Part V. Building a Campaign Donor Network: How Candidate Gender and Partisanship Impact the Campaign Money Chase / Michele L. Swers and Danielle M. Thomsen -- Training Women to Run in an African Democracy: The Case of Benin / Martha C. Johnson -- Paying it Forward: Candidate Contributions and Support for Diverse Candidates / Jaclyn J. Kettler -- Conclusion: A Reason and a Season to Run