Margaret Blackstone

Margaret Blackstone is the author of sports books for children including This Is Baseball and This Is Figure Skating. She lives with her son, Dash, in New York City.

John O'Brien is lieutenant lifeguard on the Jersey shore and has been dedicated to beaches and beach safety for the past thirty-five years. The illustrator of many popular children's books--including This Is Baseball, This Is Figure Skating, and This Is Soccer--he divides his time between the Jersey shore and Miami, Florida.