This Compendium was conceived as a “pocket compass�, a practical guide that may help readers to orientate themselves while they explore global affairs and attempt to make sense of the highly interconnected, multidimensional challenges of contemporary human development. The book is intended to be an accessible, concise, yet comprehensive reference for anyone who hopes to better understand today world and its dramatic complexity. The aim is to highlight a relevant selection of the demographic, socio-economic, geo-political, and environmental macro-dynamics that define our time, and to explore in a practical way the indicators that can be used to monitor their evolution over time.  In general, this project stems from the need to apply “systemic thinking� to the study of the world and to develop a holistic perspective that can bridge the gap that for too long has existed across academic disciplines and their respective focuses. The macro-trends featured in the book shed light, in particular, on the change that has been occurring over time in the vast Global South – a portion of the globe that accounts for over 80% of the world total population. The book ultimate – although not exclusive – target audience is undoubtedly composed of undergraduate students of subjects such as political science, international affairs, international development, human geography and the like. In addition, the Compendium may benefit professionals in both public and private organisations as well as members of the general public seeking to acquire global development literacy in manners that are academically sound, but also accessible and concise.