[3] According to Architect Ward Miller: Adler & Sullivan are most associated with being an innovative and progressive architectural practice, forwarding the idea of an American style and expressing this in a truly modern format.
Furthermore, the expression of a tall building, its structure with a definite base, middle section or shaft and top or cornice was a new approach for the high building design.
Even today, the vertical expression of a building employs these design principals.
[4]Adler, with his engineering prowess and facility with acoustics became seen as the business genius of the partnership, while Sullivan, known for his great design talent, is recounted as the artist.
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