When Diana Diaz-Harrison was looking for good secondary schooling options for her son who is autistic, she wasn’t finding great options. She advocated and fought, but eventually decided to take matters into her own hands and started the Arizona Autism Charter School, which is now expanding. And it won this year’s Yass Prize, which awards the country’s education provider that best demonstrates the STOP principles—Sustainable, Transformational, Outstanding, Permissionless education. In this conversation I asked about the path to the prize and the journey to better serve students with autism.