I am having a renewed and intense interest in mathematics

Just finished reading "Prime Obsession" by John Derbyshire - incredible read about prime number distribution and the story of Bernhard Riemann. Riemann is monumental to mathematics and without him, Einstein doesn't get to relativity.

I started this after reading Doug Hofstadter's "I Am a Strange Loop" which gets into Kurt Godel's Incompleteness Theorem - which uses prime numbers and powers thereof to prove that any arithmetic system has in it some unprovable statments. Gets very recursive.

I also just finished "A Brief Tour of Human Consciousness" by V. S. Ramachandran - an easy and interesting read.