Specifically, I write for children. I'm currently working on two more hi-lo books for the same company, one on aviation adventures, the other on bicycling. I guess starting something is the best test I have to see if the project will be truly interesting or not. Synesthetes are people who perceive sensory input with more than one sense. For me, it's associating letters and numbers with colors.
Fives are yellow.
Fours are green. I don't know why. They just are. Good, detailed, thoughtful, factual information and plenty of it. Clearly this person actually used the product, saw the movie, read the book.