"All In: Towards Tangible Solutions for Equity and Inclusion in Education" showcases promising practices that were successfully implemented to ensure that inclusive education really does include all children, so that the most marginalized learners -- including children with disabilities, children who are out of school, children living in poverty, marginalized girls, and refugee children -- have access to quality education. While many of the promising practices were initiated in response to the COVID-19 crisis, or draw upon the pandemic experience, they go beyond the immediate focus of pre- or post-COVID-19 education systems to an overall view of child well-being and the need to focus on skills for the 21st century. Many of these practices have the potential to be applied more widely within education systems and can be adapted and replicated by stakeholders in any context where innovative and inclusive approaches are needed to protect and promote children's right to education. Ingenuity, flexibility and a commitment to true inclusion and forward-looking policies are the common thread of promising practices in this document. This publication is a complementary resource to the 2021 report: "Reimagining Girls' Education: Solutions to Keep Girls Learning in Emergencies."