This is an introduction to the life and work of Kate Roberts, the most important woman writer ever to have emerged from Wales. It offers a comprehensive account of her life, from her birth into a life of poverty and hardship in the slate-quarrying region of Snowdonia to her death almost a hundred years later in Denbigh; in between, she had attended University, at a time when very few Welsh women did, worked as an impassioned and inspirational teacher in the south Wales valleys, run a major printing press and published the main Welsh national newspaper, Y Faner, helped to found Plaid Cymru, the Welsh Nationalist Party, campaigned tirelessly for the Welsh language, challenged gender stereotypes and restrictions in traditional patriarchal Wales, and produced a body of literary work in the Welsh language which makes her rank alongside Saunders Lewis as the greatest Welsh writer of the twentieth century.