Many congratulations to Nathan Bryon and Dapo Adeola on their marvellous book, Look up!. If you’re wondering how to sell your book, if you’re on the right track, have a look at how Bryon sat in book shops and had a good look at what was selling for what age group, then let that guide his writing. You’ll find more about that approach in a post of mine here. Happy researching and good luck!