Ellen Ochoa became the first Latina to go to space when she served on a nine-day mission aboard the Space Shuttle Discovery in 1993. She has flown on four missions, spending a total of 41 days in space. She completed her 30-year career at NASA by serving as the 11th Director of NASA's Johnson Space Center in Houston, TX, and is honored to have six schools named after her. Now living in Boise, ID, with her husband and dog Felix, with their two grown sons nearby, she continues to be an ambassador for science and engineering education, especially engaging kids and adults from groups who are underrepresented in those fields.

Citlali Reyes is a Mexican illustrator. Since she was a child, she has always loved doodling and telling stories through images; this drew her to the enchanting world of illustration, where she has resided for almost ten years. In 2014, she partnered with Lil' Libros to create their first three books, and over time, she has illustrated more than thirty bilingual children's books for the publisher. Now, she finds herself in a new adventure as the author and illustrator of her debut book, Sana, sana, colita de rana. When she is not drawing for countless hours, Citlali enjoys reading, stargazing, or playing around with her camera.