We live in an era in which designers will make an essential and critical contribution to the health and success of humanity. Design can promote healing in healthcare environments, contribute to good mental health, reduce gun violence, and positively impact health and racial equity, all of which contribute to providing a more peaceful world. The primary focus of this book is to inspire young designers, academics, and practitioners to achieve their maximum societal contribution. It also supports experienced designers seeking reaffirmation of their social goals. To provide a foundation, the first chapter discusses the definition of design and design thinking and evidence regarding the direct and indirect contributions of design to peace. The subsequent chapters address peace endeavors at six scales of the physical environment: sustainable and equitable design, landscape architecture, architecture, interior design, industrial design, and graphic design. Additionally, nine short cameos are provided by contributors from various disciplines, who provide their favorite examples of "peace projects." Peace can be manifested at multiple levels: world-wide, neighborhood and community, familial, or individual, and the various authors discuss portions from this spectrum. They broadly endorse disciplinary entanglements as a means of addressing societal and sustainability challenges and celebrate the impact of collaboration. This book is essential reading for students and practitioners representing all fields of design, including graphic design, industrial design, interior design, architecture, landscape architecture, and urban design.