Prof. Glasser has co-authored a book titled “Attainable Region Theory: An Introduction to Choosing an Optimal Reactor” which is published by Wiley. The book discusses how to effectively interpret, select, and optimize reactors for complex reactive systems, using Attainable Region theory. Attainable Region (AR) theory provides a means of understanding chemical reactor networks from a geometric perspective. This approach allows one to find all possible outcomes for all possible designs–even the designs one cannot imagine–giving one confidence that what is designed is always optimal for a given situation. With so many different reactor types available, and infinitely ways to combine these types together, the book discusses how we should go about decoding and designing these systems. Covering both fundamentals and advanced concepts, this book demonstrates how knowledge of attainable regions can lead to powerful insights and discoveries that improve the performance of complex reactor designs. The book has over 70 worked examples and 200 illustrations, including interactive software tools written in Python, which demonstrate how AR theory can be used to solve reactor network problems. The book discusses fundamentals of AR theory suitable for readers without any prior knowledge of chemical reactors or optimization. The book presents extended AR topics including construction algorithms, higher dimensional problems, and variable density systems. The book serves as a companion textbook for self-study or a reference for instructors, and may also be used as a module of a larger course on reactor network design and optimization. The book is targeted at: chemical/process engineers interested in chemical reactor design; lecturers/professors in chemical engineering; undergraduate students in their second, third and fourth years; graduate students and researchers; and experienced practitioners in industry looking to understand and improve chemical reactor systems. The book has a companion website (http://attainableregions.com) with interactive examples.