Charlotte & Peter Fiell are well-known design authors having written over sixty books on the subject. Among their various areas of specialization is the realm of transportation design in all its diverse forms. The Fiells have lectured widely, guest taught courses, curated exhibitions, and consulted manufacturing companies, museums, salerooms, and major private collectors around the world. Together, they have written numerous TASCHEN books, including 1000 Chairs, Design of the 20th Century, Industrial Design A–Z, 1000 Lights, and Scandinavian Design. They also edited TASCHEN's Decorative Art series and the 12-volume domus 1928–1999 and have most recently authored the double-volumes Ultimate Collector Cars and Ultimate Collector Motorcycles.