"Solar Variability and Planetary Climates" is a specialized book that addresses the role of solar radiation and its impact on the Earth's climate. It provides a comprehensive analysis of the energy flows that reach the Earth from the Sun and examines the interactions between solar variability and climatic changes. The book highlights the mechanisms through which solar energy is processed in the Earth's atmosphere and at the surface, and discusses the effects of human activities on the climate, particularly concerning the increase of greenhouse gases. The authors, Y. Calisesi, R.-M. Bonnet, L. Gray, J. Langen, and M. Lockwood, contribute their expertise to explain the complex relationships between solar activity and climatic conditions. This book is aimed at professionals and students who wish to gain a deeper understanding of climatic processes and the role of the Sun in these processes.