How do I make the cover?

Click "Export", then "Make the cover". The book is saved and Covers opens with the title, subtitle, author, trim, page count and back cover text set, the genre "Puzzles & Activity Books", the sub-genre "Maze Book for Kids", "Maze Book for Adults" or "Large Print Maze Book", and white paper (so the spine width is right). Covers draws the front cover with your image engine and exports the full KDP wrap. "Back to Activity Studio" in Covers opens your maze book again.