What is the "Cover and listing text" card?

It writes the words around your book from what the book really holds (the count, the type, the measured levels, the lessons, hints, target times and progress pages), so every sentence is true of it:

• Front cover lines: short lines for the cover besides the title, for example "200 Sudoku Puzzles", "Easy to Evil", "Solutions included".
• Back cover: a short text for the back of the book.
• Amazon description: the product description for your KDP listing.
• KDP keywords (one per box): seven keyword phrases for KDP's seven keyword boxes, each 50 characters or less. Each has a "Copy" button. Read them and change anything you like.