Art played a big role at the PPIE. For the fairgrounds, artists created many statues to fill the exposition. On the tops of buildings, at the bases of fountains, and hidden among the shrubbery and trees waiting to be accidentally discovered. There were also elaborate architectural murals painted on various buildings throughout the fair. The Palace of Fine Arts was the primary location of exhibited artwork, with thousands of paintings and sculptures on display from artists all over the world.

Here are some Gutenberg Project texts (printed originally in book for at the time of the PPIE) that have many photos and descriptions of the various sculptures and murals of the fair:

The Art of the Exposition
The author, Eugen Neuhaus, provides a description of the architecture, sculpture, and murals of the 1915 Panama Pacific Exposition held in San Francisco.

The Galleries of the Exposition
A Critical Review of the Paintings, Statuary and the Graphic Arts in The Palace of Fine Arts at the Panama-Pacific International Exposition, by Eugen Neuhaus.

Sculpture and Mural Decorations of the Exposition
The author (father of Alexander Calder - the contemporary sculptor) provides a description of the sculptures of the 1915 Panama Pacific Exposition held in San Francisco. By A. Sterling Calder

Sculpture of the Exposition Palaces and Courts
Descriptive Notes on the Art of the Statuary at the Panama-Pacific International Exposition, San Francisco, by Juliet Helena Lumbard James.