This book serves as an Introduction to Parametric Modeling. The book uses architectural and structural form concepts as a guide/aid for learning complex Parametric Modeling. It explores a series of Parametric case studies. Case studies explored are Folded Plate Tessellations, Shell Structure Tessellations, Grid Shells, and Tall Buildings. It also explores Form Finding using the physics engine Kangaroo 2 along with the Mesh Modeling Plug-in Weaverbird.