Simple explanations of complex ideas for your future genius! Written by an expert, Electromagnetism for Babies is a colorfully simple introduction to magnetic fields and how they work. Babies (and grownups!) will learn all about positive charges, negative charges, and electric currents. With a tongue-in-cheek approach that adults will love, this installment of the Baby University board book series is the perfect way to introduce basic concepts to even the youngest scientists. After all, it's never too early to become a scientist! Baby University: It only takes a small spark to ignite a child's mind.