About the Cover

In the Texas Panhandle Plains region, music, art, and architecture all collide in a place dedicated to the life and music of one of the pioneers of rock and roll. The Buddy Holly Center in Lubbock houses an extensive collection of Buddy Holly memorabilia, among them a Gibson guitar model J200. Even the Buddy Holly Gallery itself is shaped like a guitar! You'll learn more about how art and architecture are related in Chapter 6.

About the Graphics
Twisted torus. Created with Mathematica. A torus with rose-shaped cross section is constructed. Then the cross section is rotated around its center as it moves along a circle to form a twisted torus. For more information, and for programs to construct such graphics, see: www.wolfram.com/r/textbook.