Gabe Csanady’s ‘Air-Sea Interaction: Laws and Mechanisms’ provides a new and long needed perspective on air-sea interaction. This book discusses similarities and differences in the ocean and atmospheric boundary- layers, as well as the surface waves that are related to some of this interaction. Rather than focusing on one side of the interface or the other, it describes how both boundary layers act and interact on a wide range of spatial/temporal scales. The qualitative descriptions of boundary-layer processes, their evolution and forcing mechanisms are excellent. Furthermore, the writing style provokes the reader to think about these points. In some cases, atmospheric scientists are likely to find this provocation annoying: such as calling the top of the atmospheric mixed layer the ‘atmospheric thermocline.’ However, most of the additional thought comes easily due to the lucid and easily visualized descriptions.