Riemann's Zeta Function
Unknown Quantity: A Real and Imaginary History of Algebra
Journey through Genius: Great Theorems of Mathematics
Journey through Genius: The Great Theorems of Mathematics
Fermat's Enigma: The Epic Quest to Solve the World's Greatest Mathematical Problem
An Imaginary Tale: The Story of [the square root of minus one]
Prime Numbers and the Riemann Hypothesis
An Imaginary Tale: The Story of √-1 (Princeton Science Library)