Along its existence, humans have used Earth resources in a reckless way, having little consideration for its importance, and for the future generations and their needs. Considering the complexity of this subject, and the extreme difficulty of analyzing all aspects of soil degradation, the Editors nonetheless gather here some contributions, each one addressing different soil conservation problems, strategies or methodologies, trying to add some contributions for the understanding of the overall problem of soil degradation and conservation in the world. The seven chapters that comprise this book address topics related to soil degradation and conservation strategies, presenting some cases and methodological approaches, in different parts of the world, promoting scientific research developed with the objective of contributing to a better knowledge of the problem and to help in its mitigation.