Joanna Cole is the author of the popular Magic School Bus series, I'm a Big Brother, I'm a Big Sister, and many other award-winning books. In Asking About Sex & Growing Up, she provides a reassuring blend of practical guidance and scientific fact for the audience that needs it most.

Maxie Chambliss has illustrated several of Joanna Cole's books, including My Big Girl Potty, My Big Boy Potty, I'm a Big Sister, and I'm a Big Brother.