The book "An Introduction to Environmental Biophysics" by Gaylon S. Campbell and John M. Norman, in its second edition, aims to describe the physical microenvironment in which living organisms reside and present a simplified discussion of heat and mass transfer models applied to exchange processes between organisms and their surroundings. The book is used as a text in courses at Washington State University and the University of Wisconsin, incorporating knowledge gained over 20 years of teaching. The second edition includes changes in the order of presentation, with a focus on the physical environment of living organisms before delving into heat and mass transport. It also introduces radiative transport in two chapters and includes material on remote sensing. The book uses molar units for mass concentrations, conductances, and fluxes, and conductance rather than resistance, to simplify equations and provide a coherent system of units. The final chapters apply these principles to animal and plant systems, with a focus on practical problem-solving. The book is designed to be accessible to students from biological sciences backgrounds, with many example problems and additional exercises.The book "An Introduction to Environmental Biophysics" by Gaylon S. Campbell and John M. Norman, in its second edition, aims to describe the physical microenvironment in which living organisms reside and present a simplified discussion of heat and mass transfer models applied to exchange processes between organisms and their surroundings. The book is used as a text in courses at Washington State University and the University of Wisconsin, incorporating knowledge gained over 20 years of teaching. The second edition includes changes in the order of presentation, with a focus on the physical environment of living organisms before delving into heat and mass transport. It also introduces radiative transport in two chapters and includes material on remote sensing. The book uses molar units for mass concentrations, conductances, and fluxes, and conductance rather than resistance, to simplify equations and provide a coherent system of units. The final chapters apply these principles to animal and plant systems, with a focus on practical problem-solving. The book is designed to be accessible to students from biological sciences backgrounds, with many example problems and additional exercises.