Since 2008, Peggy has blogged about family life and living with autism. The University of North Texas Press published her first book, See Sam Run, a memoir chronicling her autistic son's early childhood. Sam was diagnosed in the 1990s, just as autism was becoming widely known and better understood. The book won the Mayborn Prize for Literary Nonfiction.

After the book's release, Peggy collaborated with autism expert Shahla Ala'i-Rosales to write an autism parenting book. Reviewers call Responsible and Responsive Parenting in Autism: Between Now and Dreams a "first-stop, must-read" for parents, caregivers, and the professionals who support them.

Currently, Peggy is writing her third book on living with disability, inspired in part by the Crip Camp documentary. She wondered what if Camp Jened also had book for parents, a foundational guide to becoming better allies?

Parents do their best to let go as their teenagers become adults. But for parents of teens with disabilities, shifting from caregiver to ally can be fraught and difficult. The work comes with little guidance.

When a child has a disability, their parents begin the battle for their self-determination, sometimes in infancy. The battle can feel unwinnable long before an individual reaches adulthood. One of our society’s cruel truths is that people with disabilities and their loved ones must lead the fight against our culture’s many barriers. Yet, if we change the world through our children, then the transition that each disabled teenager makes toward adulthood can be a radical act. It begins with their resistance to the arbitrary authority over what comes next in disabled lives.