Tim starts his first day at school, but he soon gets embarrassed by the way he sees colours differently from other children in the class. He is colourblind, colour vision deficient (CVD), and learns how this is okay. The story uses colours that someone who is colourblind might see and has some interesting colourblind facts. Colour blindness affects a large proportion of the population, this is the perfect way to help explain to children what colour blindness is. "No need to say sorry for what you see, Your colours are yours and perfect for me."