An accomplished science and nature illustrator, Patricia J. Wynne is the recipient of the 2008 Theodor Seuss Geisel Honor and has won awards from Parenting Magazine, the John Burroughs Association, and the National Science Teachers Association. Patricia's artwork has appeared in galleries, magazines, newspapers, and more than 100 books for both children and adults. She is the illustrator of numerous successful Dover titles on science and nature, including My First Book About Outer Space, My First Book About the Body, My First Book About Weather, My First Book About the Brain, My First Book About Physics, and more.

Trained as a research scientist, Donald M. Silver has written more than 80 books for students of all ages and for teachers. His One Small Square series takes a close-up look at plants and animals where they live. He has won numerous awards, including the Children's Science Writing Award in Physics and Astronomy from the American Institute of Physicists. He lives in New York City where he has worked with Patricia J. Wynne since 1981 and with whom he has co-authored numerous successful Dover titles on science and nature, including My First Book About Outer Space, My First Book About the Body, and My First Book About the Brain, My First Book About Physics, and more.