Angelina (4 years old) and Berkeley (2 years old) are our youngest, and dare we say cutest, guests on Completely Booked thus far. With the help of their mom Erica they are showing the world how to have fun while doing science projects on their Instagram account @ScienceSis. Learn more about their favorite library service, the Traveling Tales. Our Early Childhood Specialist Susan Mankowski tells why the Traveling Tales are a great way to engage kids in learning.