The six instructional modules (chapters) contained in this text are designed for use by students and instructors for preparing technicians in the areas of optics, electro-optics and lasers. The ebook can be used as an introductory course in AAS programs in laser/electro-optics and photonics at two-year postsecondary community and technical colleges, as supplementary laser/electro-optics courses in related fields such as biomedical equipment, manufacturing, defense and nanotechnology, as well as in programs designed to retrain or update the skills of engineering technicians who are already employed. These materials can also support dual-credit offerings for high school students in STEM career pathways. The modules are designed to be used as a unit or independently, as long as prerequisites have been met. Video tutorials in key math concepts are included. Also included are laboratory videos, HTML5 interactive widgets, workplace scenarios, and technician career pathways examples.