On today's Please Explain, we look at how images can help us understand complicated scientific ideas. We talk about the relationship between art and science, and find out what goes into creating illuminating scientific visualizations. Felice Frankel, a judge for the annual Science & Engineering Visualization Challenge, and Graham Johnson, a former challenge winner, answer your questions. Call 212-433-9692.

Felice Frankel is a Senior Research Fellow at Harvard University, Faculty of Arts and Sciences, in the Initiative in Innovative Computing. Graham Johnson is a Certified Medical Illustrator and NSF Predoctoral Fellow at The Scripps Research Institute.

Envisioning Science: The Design and Craft of the Science Image is available for purchase at amazon.com

On the Surface of Things: Images of the Extraordinary in Science is available for purchase at amazon.com

Cell Biology is available for purchase at amazon.com