Textbook in PDF format Handbook of Systems Engineering and Analysis of Electro‑Optical and Infrared Systems: Concepts, Principles, and Methods offers more information on decision and risk analysis and statistical methods in systems engineering such as design of experiments (DOX) methods, hypothesis testing, analysis of variance, blocking, 2k factorial analysis, and regression analysis. It includes new material on systems architecture to properly guide the evolving system design and bridge the gap between the requirements generation and design efforts. The integration of recent high‑speed atmospheric turbulence research results in the optical technical examples and case studies to illustrate the new developments is also included. A presentation of new optical technical materials on adaptive optics (AO), atmospheric turbulence compensation (ATC), and laser systems along with more are also key updates that are emphasized in the second edition 2‑volume set