The second book in the Hourglass Door trilogy. Dante was unlike anyone Abby had ever met. Now he's gone, and Abby will do anything to get him back . . .
This enlightening and gorgeously illustrated book explores the beauty and mystery of the divine proportion in art, architecture, nature, and beyond. From the py
Dante, a prisoner sent from fifteenth-century Italy into the present time as punishment, meets and falls in love with Abby, a high school senior who may be the
The elegance of mathematics meets the creativity of art in this unique coloring book. The golden ratio is the mathematical equation that describes what many con
In this invaluable book, the basic mathematical properties of the golden ratio and its occurrence in the dimensions of two- and three-dimensional figures with f