30 printable or digital investigations of female athletes: Serena Williams, Hilary Knight, Cheryl Swoopes, Danica Patrick, P. V. Sindhu, Mia Hamm, Simone Biles, Annika Sörenstam, Lindsey Vonn, Nadia Comaneci, Abby Wamback, Briana Scurry, Martina Navratilova, Rhonda Rousey, Billie Jean King, Dominique Dawes, Bonnie Blair, Althea Gibson, Lisa Leslie, Wilma Rudolph, Michelle Kwan, Venus Williams, Maria Sharapova, Florence Griffith Joyner, Missy Franklin, Peggy Fleming, Candace Parker, Michelle Ake