and other parts of Africa have been my main source of information and inspiration in writing this book and so they all deserve the highest acknowledgement. This book is a gift to them and I hope it advances their legitimate claim to be masters of their own knowledge sovereignty and future destiny. Their cause, my admiration for their tenacity and resilience, and my love for humanity, are what have driven me to commit half of my life to them, and I will commit the rest of my life to them also. Friends, academic colleagues, associates, NGOs and social movements across the globe, with whom I have been associated in so many ways, provided moral, technical and professional support, and it would be impossible to name all of them. I would like to mention the following, including some who have passed away. My colleagues from the Bartlett Development Planning Unit at University College London (UCL). Special thanks to Emeritus Professor Yves Cabannes for his tremendous moral and professional support over the last three years in introducing me to UCL Press, sharing his extensive experience on the subject matter of this book, reading and commenting on some of the chapters and supporting my dream of bringing this task to a successful end. I am very grateful to our Director Professor Julio Davila, and to Dr Robert Biel, who have supported me all along and motivated me to get on with the book without too much delay. I am also very grateful to Chris Penfold from UCL Press for his guidance and moral support during the preparation of the manuscript.