Foreword Directions for viewing the 3-D pictures & performing the experiments in this book Objects & pictures The pecularity of pictures Ambiguous, paradoxical & uncertain figurees Distorting figures Scaling the universe Drawing in 2-dimensional space Drawing in 3-dimensional space Pictures, symbols, thought & language Seeing how things work Appendix A: Stereoscopic projections & drawing in 3D Appendix B: An instrument for improving disturbed images Notes Bibliography Index