University of California Central Library Addition, San Diego, California, 1987-1993

[Early Conceptual Sketches], untitled. Ink sketches on tracing paper, 18 x 22 1/4 inches [from photographic copy by Lance Burgharrdt]

University of California Central Library Addition, San Diego, California, 1987-1993

[Early Conceptual Sketches], untitled. Blue ink sketches on tracing paper, 12x29 inches [from photographic copy by Lance Burgharrdt]

University of California Central Library Addition, San Diego, California, 1987-1993

[Early Conceptual Sketches], untitled. Green ink sketches on tracing paper, initialed, 18 x 28 1/2 inches [from photographic copy by Lance Burgharrdt]

Corning Public Library (first proposal), Corning, New York, 1969 (unbuilt project)

[Conceptual Sketch of Building as a Bridge], untitled. Ink sketch on tracing paper, representing the beginning of polygonal thought in Gunnar Birkerts' work, 12 x 19 3/4 inches [from photographic copy by Lance Burgharrdt]

Corning Public Library (first proposal), Corning, New York, 1969 (unbuilt project)

[Conceptual Sketch of Building as a Bridge], untitled. Ink sketch on tracing paper, 11 1/2 x 12 inches [from photographic copy by Lance Burgharrdt]

Corning Public Library (first proposal), Corning, New York, 1969 (unbuilt project)

[Conceptual Sketch of Building as a Bridge], untitled. Ink sketch on tracing paper, 12 x 12 1/4 inches [from photographic copy by Lance Burgharrdt]

Corning Public Library (first proposal), Corning, New York, 1969 (unbuilt project)

[Conceptual Sketches of Building as a Bridge], untitled. Ink sketches on two sheets of tracing paper, 12 x 27 1/2 & 12 x 33 inches [from photographic copy by Lance Burgharrdt]

Cornell University Uris Library Addition, Ithaca, New York, 1980-1982

[Conceptual Sketch of Early Site Plan], untitled. Green ink sketch on tracing paper, 12x23 inches [from photographic copy by Lance Burgharrdt]

Cornell University Uris Library Addition, Ithaca, New York, 1980-1982

[Early Conceptual Sketch], untitled. Blue ink sketch on tracing paper, 12x18 inches [from photographic copy by Lance Burgharrdt]

Oberlin College Conservatory of Music Library Addition, Oberlin, Ohio, 1986-1988

[Conceptual Sketch], untitled. Ink sketch on tracing paper, 12x22 inches [from photographic copy by Lance Burgharrdt]

University of Michigan Library, Flint, Michigan, 1986-1995

[Conceptual Sketch of First Scheme], untitled. Ink sketch on tracing paper, 12 x 27 1/4 inches [from photographic copy by Lance Burgharrdt]

University of Michigan Library, Flint, Michigan, 1986-1995

[Conceptual Sketch of First Scheme], untitled. Ink sketch on tracing paper, 12x24 inches [from photographic copy by Lance Burgharrdt]

University of Michigan Library, Flint, Michigan, 1986-1995

[Conceptual Sketch of Final Scheme Site Plan], untitled. Blue ink sketch on tracing paper, 12x20 inches [from photographic copy by Lance Burgharrdt]

University of Michigan Library, Flint, Michigan, 1986-1995

[Conceptual Sketch of Final Scheme Site Plan], untitled. Blue ink sketch on tracing paper, initialed, 12x17 inches [from photographic copy by Lance Burgharrdt]

University of Michigan Library, Flint, Michigan, 1986-1995

[Conceptual Sketch of Final Scheme Phases I, II and III Site Plan], untitled. Ink sketch on electrostatic print with purple marker coloring, 8 1/2 x 11 inches [from photographic copy by Lance Burgharrdt]