The 2011 Bridges Conference, codirected by Penousal Machado, was held at the University of Coimbra, Portugal, during July 27–31, 2011. (http://bridgesmathart.org)

Sentinels - Sculptures Inspired by the Native Americans Culture

Polyhedral Knots and Links

“Without Emotion, There Is Nothing Left But Burden”: Teaching Mathematics through Heathcote’s Improvisational Drama

African Basketry: Interweaving Art and Mathematics in Mozambique

The Roman Villa in Rabaçal and Álvaro Siza

The Geometry of Organic Architecture: The Works of Eduardo Torroja, Felix Candela and Miguel Fisac

At What Level do Mathematical References Act In Contemporary Architecture?

Geometric Forms that Persist in Art and Architecture

Taking Sides, but Who's Counting? The Decagonal Tomb Tower at Maragha

Creating Two and Three Dimensional Fractals from the Nets of Platonic Solids

Through and Around instead of Over and Under. Another Way of Weaving

From Chain-link Fence to Space-Spanning Mathematical Structures

Kepler’s Mysterium Cosmographicum: A Bridge Between Art and Astronomy?

Operation Comics: The Story Continues

Symmetric Stick Puzzles; Report on Museum of Mathematics, New York City

Playing with Surfaces: Spheres, Monkey Pants, and Zippergons