Jen Welter

Dr. Jen Welter is a 4-time football champion, 2-time gold medalist, bestselling author, and the first woman to coach in the NFL — all while standing just 5'2" in a game built for giants. With a PhD and Master’s degree in Sport Psychology, she has spent her career helping people discover confidence, resilience, and the courage to be fully themselves.

The Critter Fitter universe was born from that same belief: sometimes the smallest creatures have the biggest stories to tell.

Through lovable bugs, emotional adventures, movement-based learning, creativity, and heart, the Critter Fitter books help children build confidence, express big feelings, embrace differences, and discover healthy ways to connect with themselves and others — one critter at a time.

Dr. Jen is also the bestselling author of Play Big and founder of Grrridiron Girls, a movement dedicated to teaching confidence through football and reminding girls there is no field they do not belong in or on.

She believes the strongest thing a child can become is exactly who they are.