Georgina Bloomberg is the younger daughter of New York City mayor Michael Bloomberg. An accomplished equestrian, Georgina is on the board of directors of the Equestrian Aid Foundation. She is also the founder of the charity, Rider's Closet, which collects used riding clothes for collegiate riding teams that are unable to afford them. Georgina is a graduate of New York University's Gallatin School of Individualized Study. [This bio is not yet approved for use out of house.] Catherine Hapka has published more than 200 books for children and young adults, including many about horses. A lifelong horse lover, she rides several times per week and keeps three horses on her small farm in Pennsylvania. In addition to writing and riding, she enjoys animals of all kinds, reading, gardening, music, and travel.