B.C. LESTER BOOKSThe Book Of Pi: What is Pi, it's history and the number to 100,000 digits.: A concise handbook of Pi to 100,000 decimal places.

The Book Of Pi: What is Pi, it's history and the number to 100,000 digits.: A concise handbook of Pi to 100,000 decimal places.

Humble Pi: When Math Goes Wrong in the Real World

Might I Interest You in a Piece of Pi?: A Collection of Pi Puns for Pi Day