pt. 1. The edge of knowledge
pt. 2. The dilemma of space, time, and the quanta
Space, time, and the eye of the beholder
The need for a new theory : general relativity vs. quantum mechanics
pt. 3. The cosmic symphony
Nothing but music : the essentials of superstring theory
The "super" in superstrings
More dimensions than meet the eye
The smoking gun : experimental signatures
pt. 4. String theory and the fabric of spacetime
Tearing the fabric of space
Beyond strings : in search of m-theory
Black holes : a string/m-theory perspective
pt. 5. Unification in the twenty-first century