"Version: 202112"--Title page verso.Includes bibliographical references.1. The scientific legacy of giant-planet research -- 2. The planet-forming environment -- 2.1. Introduction -- 2.2. Disk evolutionary phases and spectral energy distributions -- 2.3. A simple analytical disk model -- 2.4. Model extensions : adding complexity3. Microscopic to macroscopic : grain growth and pebble formation -…