# Friday, June 28th, 2013: More Books.

#### Elementary Number Theory: Primes, Congruences, and Secrets

Another open source book posted on GitHub. Another book added to my mathematical to-read list. The picture, from Wikipedia: A Lehmer sieve, which is a primitive digital computer once used for finding primes and solving simple Diophantine equations.

#### Iain M. Banks: The Culture Series

I've just started reading Iain M. Banks, starting with Consider Phlebas, his first science fiction novel. Banks died a few weeks ago and upon reading of his death I was subsequently prompted to read up on his work. The Culture series stood out as my "cup-of-tea".

The stories center around the Culture, a post-scarcity semi-anarchist utopia consisting of various humanoid races and managed by very advanced artificial intelligences.