The specific components and architectures of flexible MOFs are key to their unique properties, so understanding their chemistry is of critical importance for more targeted construction and functional research. This book provides an accessible overview of the historical background of the chemistry of flexible MOFs and their features; in particular, design and synthesis, dynamic structure analysis, flexibility, function and theoretical treatment, and interpretation of the mechanisms as well as their applications. It gives readers a fundamental understanding of this chemistry and will be of great help to young researchers, as well as those already familiar with conventional porous materials in creating new materials.