It was obvious to Catherine Simpson from the beginning that there was something different about her first child, Nina.

Motherhood had always felt like Catherine's destiny, and she'd grown up nurturing joyful visions of the family she'd create. But her dreams crashed headfirst into the reality of parenthood. It seemed that the world was not Nina-shaped, and no matter how hard they both tried, they had to fight almost everything – especially once Nina started school.

Aged ten, Nina's autism was diagnosed and a door opened. It became clear why she didn't think or behave the way other children did, but faced with school bullies, dismissive doctors and insensitive peers, her difficulties were far from over. She and Catherine still felt as though it was them against a world that demanded Nina change as a child and Catherine as a mother.

While Nina remained resolutely herself, Catherine adapted. Mothering an autistic child lit a fierce determination within her and underlined the power of her unconditional love.

This is an unforgettable story that shows what a gift it is to see someone not as the world tells them they should be, but as they are.