What happens when the devices we design to assist us begin to think with us, feel with us, and even become part of us? Augmentation Technologies and Artificial Intelligence in Technical Communication: Designing Ethical Futures addresses this question by urging readers to consider not only how technologies shape our capabilities, but also how we can shape them toward more just, ethical, and human-centered futures. Much like boarding a "fast-moving train," as authors Ann Hill Duin and Isabel Pedersen describe, the book is a forward-looking volume that interrogates the technical, rhetorical, and socio-ethical dimensions of emerging human augmentation and AI systems. Duin and Pedersen argue that artificial intelligence (AI), biometrics, and other augmentation systems are not merely technical tools but rhetorical and ethical phenomena that influence, and are influenced by, political, cultural, and economic conditions in ways that reconfigure the roles, literacies, and responsibilities of communication professionals.