While not a direct replacement for the book, here are some free online resources that can help you understand sociology:
If you're unable to find a free PDF download, consider the following alternatives: While not a direct replacement for the book,
Summaries of theories from pioneers like Durkheim and Marx to modern thinkers like Bourdieu . and Politics. Modernity and Change: Industrialization
Les fondements scientifiques, les pères fondateurs et les courants contemporains. While not a direct replacement for the book,
In-depth looks at Family, Education, Religion, and Politics. Modernity and Change: Industrialization, urbanization, and rapid social change. Key Sociological Concepts to Master