Thomas Erl ; with contributions by Paulo Merson and Roger Stoffers. Barbara Haskell ; with contributions by Glenn Adamson [and four others]. Nicolas Grospierre ; with contributions by Elias Redstone and Owen Hatherley. with contributions by Sarah Hamerman and Susan Roeper Ruth Erickson ; with contributions by Andrea Barrett [and thriteen others]. with contributions by Maria Barnas [and 11 others with contributions by Sheila Barker [and 5 others].