This course will provide an introduction to the fundamental properties of liquid crystals and liquid crystal devices, as well as to their widespread technological applications. The main goal is to enable engineers, students, and researchers working at the forefront of optics, engineering, and materials science to better understand and more successfully utilize liquid crystals and liquid crystal devices in their own applications. Many practical and useful examples are included throughout the course, such as applications in displays, beam steering, telecommunications, tunable photonic crystals, nano-science, biodetection, drug delivery, energy harvesting and control. You will become fluent with what liquid crystals are and how to use them. Hands-on training to fabricate a liquid crystal device will also be included.