Niamh O'Keeffe, (UK) is a leadership advisor, established author and the founder of First100 and The Prosper Leadership Academy (www.prosperleadershipacademy.com). She has over 25 years career experience in leadership advisory services - including strategy consulting, executive search and leadership coaching. Her insights in this book are based on her experience as a trusted advisor to chief executives and working with senior leaders on key moments in their leadership role lifecycle: how to get promoted, how to have a great first 100 days, how to stay the course and legacy projects. O'Keeffe's client list spans multiple industries and includes advising leaders of entrepreneurial ventures in London and New York, as well as senior executives at global corporations like Accenture, Microsoft and Oliver Wyman Group.