Using a series of visual metaphors, the book attempts to simplify the phenomenon of quantum entanglement down to its core concepts. It introduces four balls, two red and two blue. Two of the balls are put into boxes and given to two people, Alice and Bob. Neither person knows what color ball is in their box, but because the balls are like quantum-entangled particles, we know that they will the same.
If that summary is a bit confusing, well, you’re not alone. Quantum entanglement is a pretty advanced concept for little readers to grasp, and I just don’t think this book hits the mark. To be frank, I’m not even sure I understood the subject any better after reading the book, much less JJ. One of the problems seems to be the illustrations which, while simple and boldly-colored to lay out the science neatly, are a bit flat and lifeless. The length was fine, and the language was easily digestible for readers JJ’s age, but the message never felt very clear, which is ostensibly the book’s intent. It’s hard not to compare this to the books from the excellent Baby Loves Science series by Ruth Spiro, which manages to impart complex scientific concepts in a far more approachable and colorful way. Overall, this was not a bad book; any book that encourages an interest in STEM in young children is okay by me, and other readers might find it more engaging. But for us, it didn’t quite light the spark of curiosity. So we will call it Baby Bookworm approved, with an asterisk.