Joe and Bob Switzer were very different brothers. Bob was a studious planner who wanted to grow up to be a doctor. Joe dreamed of making his fortune in show business and loved magic tricks and problem-solving. When an accident left Bob recovering in a darkened basement, the brothers began experimenting with ultraviolet light and fluorescent paints. Together they invented a whole new kind of color, one that glows with an extra-special intensity Day-Glo. Interest Level: 3-6 Reading Level: 5.7 ATOS Book Level: 6 AR Interest Level: LG AR Points: .5 AR Quiz: 130218EN Reading Counts Level: 8.4 Reading Counts Points: 3 Lexile Measure: 990.