The book “Algorithms-Aided Design” presents design methods based on the use of Grasshopper®, a visual algorithm editor tightly integrated with Rhinoceros®, the 3D modeling software by McNeel & Associates allowing users to explore accurate freeform shapes. The book provides computational techniques to develop and control complex geometries, covering parametric modeling, digital fabrication techniques, form-finding strategies, environmental analysis and structural optimization. It also features case studies and contributions by researchers and designers from world’s most influential universities and leading architecture firms.