Book excerpt: The A–Z Resource on Instructional Systems Design Modern, adaptable, flexible, timeless. Instructional systems design (ISD) is more relevant than ever and critical for organizational success. ISD is used by education and training professionals worldwide, with billions of dollars a year spent on designing and implementing training. Given such high stakes, organizations need the best training product available, and educational programs need the best textbook for cultivating professionals in this field. Introduction to Instructional Systems Design is just that resource. This book provides comprehensive instruction for professors, instructors, and students of ISD who seek a professional and proven design method in an academic foundation. Written by long-time professor and practitioner of instructional design Chuck Hodell, this is a through line to his earlier bestselling volume ISD From the Ground Up and offers an even greater practicality with a strong theoretical base to answer the questions of why designers do what they do. In chapters that detail the building blocks of instructional design, the ADDIE process, and advanced ISD processes such as determining criticality and content mastery, Hodell creates a guided learning experience with discussion questions and case studies to prompt deeper reflection. Preparing learners for digital learning and adapting in-classroom courses for remote learning are a particular focus, and Hodell provides an overview of career options and development. Perfect for professors and instructors, this textbook also includes an instructor’s guide.