Perfect for readers of What Do You Do With an Idea? and The Curious Why, this beautifully illustrated ode to science and discovery encourages the curious, inspires the imaginative, and gives dreamers of all ages a powerful tool for building a better world.

A question becomes your guiding star in the dark.
Read, watch, and wonder.
What could be the answer?

Welcoming and exciting, this picture book is a how-to of science. It encourages kids to let their imaginations run wild, let their eyes lead them to new clues, and let themselves be wrong, sometimes-but never give up!

The quest for knowledge isn't always straightforward, but if they trust the journey, and trust this guiding text, eventually they'll know. Know what? The answers to big questions!

With stunning, accessible art from award-winning illustrator Cornelia Li and a lyrical, stirring text by award-winning author Kirsten W. Larson, This Is How You Know is an essential read-aloud for curious kids and adults looking to inspire a passion for knowledge and learning.