The book "Next Generation Microchannel Heat Exchangers" offers a comprehensive analysis of the latest developments in microchannel heat exchanger technology. The authors present innovative data and technical expertise that are not available in the open literature. These new microchannels feature exceptionally high heat transfer coefficients and exhibit significantly lower pressure drops compared to conventional microchannel heat exchangers. These characteristics open up promising opportunities in various application areas, including cooling high heat flux electronics, waste heat recovery, and improving energy efficiency. The book is particularly relevant at a time when the search for high-performance heat and mass exchangers that can reduce material costs is gaining importance.