This book tells the true story of two very different brothers, Bob and Joe Switzer, who turned a basement hobby and a medical accident into a world-changing invention. While one brother dreamed of magic shows and the other of becoming a doctor, they combined their skills to create colors that glow with an electric brightness never seen before—Day-Glo! Their journey of experimentation, persistence, and brotherly teamwork led to the vibrant neon paints and signs that light up our world today, from safety vests to highlighters.