Ann started writing sometime before she knew how letters functioned. Her first books were drawings of circus poodles heavily annotated with scribbles meant to tell a story. Upon learning how letters were combined to represent words, she started doing that instead. This has proven to be much more successful.
Sometime after that, she decided she wanted to study Anthropology and sometime after that, she decided she liked cats more than dogs. And sometime after that, she decided to become an educator and teach a new generation of kids how to combine letters to represent words, and use those words express ideas.
And sometime after that, she realized all she really wanted to do was write, which probably should have been evident from the beginning.