A storyboard will make sure your illustrator provides enough illustrations to be consistent with the flow of the story without leaving gaps in the layout.
A written storyboard
You don’t have to be an artist capable of quickly producing hand-drawn sketches to create a storyboard of your story. Storyboard ideas can be a written description of the desired illustration. The description should be written as though describing a photo, not a complex motion picture with multiple scenes and actions. Some motion can be implied in an illustration, but everything in the illustration is still limited to only one frame.
Creating a storyboard give you options of incorporating single page illustrations, double page illustrations, or combinations of both. Double page illustrations can be helpful in areas where there is a lot of text that applies to the same illustration subject. Double page illustrations need careful planning to make sure the area in the center gutter does not contain anything important (like a face) that will be obscured by the binding.

Illustrations and Portrait or Landscape Page Orientation
It is very difficult to fit illustrations that are drawn in a landscape format into a portrait layout. IngramSpark does not currently offer any landscape binding sizes (wider then tall), so this could be a very real problem if your illustrations are designed for a landscape page. If you find yourself with finished illustrations that won’t fit your book size, we can possibly work with them by adding design elements or extending illustrations to fill in for the awkward fit.