This book is an introduction to Pablo González Casanova, giant of Latin American sociology. It examines his work across history, sociology, political science, and anthropology, exploring in depth his writings on the university, democracy, the new sciences, alternatives to capitalism, the humanities, equity with social justice, patriarchal domination, and the struggle for planet earth. This book provides insights into a foundational Latin American perspective on global realities. It argues that Pablo González Casanova contributes original elements for the construction of a critical theory in the social sciences and humanities of Mexico, Latin America, and the Caribbean. With an enriching interdisciplinary perspective, this book will be of interest to scholars from a range of specialized interests in sociology, political science, philosophy, anthropology, cultural studies, scientific epistemology, methodology, and critical thinking in the alternative field to capitalism.