Kenneth Libbrecht is the author of The Snowflake, The Art of the Snowflake, and our other snow-crystal titles. He was raised in North Dakota and educated at Caltech and Princeton, receiving his Ph.D. in physics in 1984. He subsequently joined the faculty at Caltech, where he is currently professor of physics and head of the physics department. Dr. Libbrecht has published numerous articles on a range of scientific topics, including the free oscillations of the sun and stars, ultra-cold atomic gases, the detection of gravitational radiation, and the mechanics of crystal growth. He resides in Pasadena, CA, with his wife and two children.