"... science of number and space, study of pattern, indispensable tool of technology and commerce, methodological bedrock of the physical sciences, endless source of recreational mindgames, ancient pursuit of absolute truth, paradigm of logical reasoning, most abstract of intellectual disciplines. In all these, mathematics creates imaginary worlds -- brought into being and controlled through the agency of specialized signs."

Preface
Writing, Imagining, Counting

Chapter 1
Toward a Semiotics of Mathematics

Chapter 2
Making Marks on Paper

Chapter 3
How Ideal are the Reals?
- getting off the real line-
- the physics of computation
- postscript: postcalculus

Chapter 4
God Tricks or Numbers from the Bottom Up?

Chapter 5
Counting on Non-Euclidean Fingers
- the truth about counting-
- nomad infinity