This document provides an introduction to basic textile terms and concepts. It defines fibers, yarns, fabrics, textiles, and grey/greige goods. It discusses problems in the textile industry due to look-alike materials and initiatives by governments and industry to set standards and inform consumers. The document outlines the diversity of textile applications and the roles of product development teams in identifying consumer expectations and tastes, conducting market research, and ensuring products meet demands through durable and comfortable materials. It defines serviceability and performance as measures of a textile product's ability to meet consumer needs and respond appropriately to use or environmental factors. Professional textile knowledge is important for better material selection and product development to satisfy consumers.