Book excerpt: AD100 and Elle Decor A-List designer Timothy Corrigan shares his secrets for creating rooms that are elegant and comfortable, luxurious yet livable. Throughout his career, Corrigan has established a look that is layered and detailed, while always suitable for the way people live today. His distinctive approach encompasses practicality as well as beauty, merging European refinement with California comfort. Here, Corrigan shares homes in which he has defined a new contemporary elegance, including a John Fowler-inspired London townhouse, a Hollywood Regency-inspired Los Angeles Colonial, an art-filled Chicago apartment in the sky, and Corrigan's own Paris pied-à-terre. Corrigan includes advice throughout on how to adapt classic design principles and traditional forms to make them work for busy modern lives. Between each chapter are instructive interludes in which Corrigan outlines the building blocks of successful decoration, with fundamental topics such as scale and proportion, symmetry, architectural details, and working with color.