Richard Walker, BSc, PhD, is editorial consultant and author of DK's Encyclopedia of the Human Body. He trained originally as a zoologist. Richard gained his PhD in physiology and biochemistry, and taught both secondary school and university students for a number of years before embarking on a successful career as a writer and consultant.

Among his human biology books for DK are the Guide to the Human Body, 3D Eyewitness Human Body, Visual Dictionary of Human Anatomy, and Brain and Body in the Megabites series. He has also written many other titles on the human body, health, and science.