This volume gives the basic concepts and building blocks for the design of Fine- (or FPGA) and Coarse-Grain Reconfigurable Architectures. Recently-developed integrated architecture design and software-supported design flow of FPGA and coarse-grain reconfigurable architecture are also described. This book discusses all aspects of the topic and contains industrial and academic contributions. It is an essential reference for researchers and professionals and can be used as a textbook by undergraduate, graduate students and professors.