Introduction to a 25th anniversary conference -- Creeping toward inclusivity in science: executive summary -- Personal reflections -- Working together to expand opportunity -- Invitied background papers -- Pt.1. Changes: what difference has the last twenty-five years made? -- Pt.2. Choices: what keeps women in science and engineering? -- The work -- The workplace -- The rewards -- Pt.3. Successes: which policies and practices work? -- What promotes success in the private sector? -- What policies of government agencies are worth emulating? -- What promotes the development of women scientists in academia? -- Academic policies and practices -- Pt.4. The future: what have we learned and how can it help?