How to Create a Number Link Book for Amazon KDP

The Number Link wizard is available on every LogikLand plan, including the FREE plan, from the dashboard. Commercial rights, which you need to sell your books on Amazon KDP, come with the PRO and EXPERT plans.

The puzzle needs no arithmetic: the numbers only name the pairs. When a grid is finished, every square is used.

• Each number appears twice in the grid. Draw a line that joins the two identical numbers.
• Lines move horizontally or vertically, from square to square. They never cross and never share a square.
• When the puzzle is finished, every square of the grid is used. Every grid has a single solution.

These rules are printed at the start of your book when you add the “How to play” page.

1. 1

   Book settings

   Choose the language of your book (English, French, Spanish, German or Italian), enter its title, select the page size (8.5 x 11 inches or 6 x 9 inches), and decide whether to add a short “How to solve” page.

2. 2

   Puzzles

   Choose One level for a single difficulty, or Several levels to set a number of grids for each level in the same book.

3. 3

   Layout

   Choose the title of each puzzle (name, level and number, or the number only). Grids: 1, 2 or 4 per page (1 or 2 in 6 x 9 inches for Hard). Solutions: 1, 2, 4 or 6 per page (1, 2 or 4 in the Large Print edition). Then set the top, bottom, left and right margins, from 0.25 to 2 inches. A page counter shows the estimated length of your book compared with the page limit of your plan.

4. 4

   Generate, edit and export

   Click Generate Book. Your project opens in the visual editor, where you can change texts, fonts and positions, save your work, and download the book as a PDF or an editable PPTX file.

• Start the book with Easy grids: 6 x 6 with about 7 pairs.
• Use a pencil: readers often draw a line, then change it.
• Add the "How to play" page: it reminds readers that every square must be used.

Amazon KDP margin requirements depend on your trim size and your page count: the inside margin must be larger for thicker books. Check the official KDP margin guidelines, preview your file in the KDP previewer, and increase the margins in the Layout step if needed.