Women make up less than 10 per cent of national leaders, and behind this lies a pattern of unequal access to power. This book, by Julia Gillard and Ngozi Okonjo-Iweala, explores gender bias and is a powerful call to arms for driven women everywhere.

Julia Gillard was the first woman to serve as prime minister of Australia and received worldwide attention for her October 2012 speech in Parliament on the treatment of women in professional and public life. She is Chair of the Global Institute for Women's Leadership at King's College, London and Chair of the Wellcome Institute.

Mary Ann Sieghart is author of The Authority Gap, revealing the scale of the gap that still persists between men and women, a fresh feminist take on how to address and counteract systemic sexism in ways that benefit all of society.