This document provides an introduction to Quality by Design (QBD) in pharmaceutical development and manufacturing. It discusses the evolution of quality approaches from chance to design. Key aspects of QBD covered include critical quality attributes (CQAs), critical material attributes (CMAs), critical process parameters (CPPs), risk assessment tools, and the role of statistics. The document presents examples of how to apply QBD concepts like quality target product profiles (QTPPs), Kano modeling, quality function deployment (QFD), and design of experiments (DoE) to identify and control elements critical to ensuring product quality.