Dr. Euler's Fabulous Formula: Cures Many Mathematical Ills
Paul J. Nahin
Prime Numbers: The Most Mysterious Figures in Math
David Wells
Geometry in Art and Architecture
Paul Calter
The Implicit Mind: Cognitive Architecture, the Self, and Ethics
Michael Brownstein & Michael S. Brownstein
Justification (Christian Theology).
Eberhard Jungel
The Truth About Death and Dying
Karen Meyers & Robert N. Golden & Fred L. Peterson