A layout designer is a person who plans and arranges the visual elements in a document, webpage, or any other form of media. They make sure that the content is organized, easy to read, and visually appealing. Full definition
However, as the complexity and diversity of styling increases, so do the prices that book layout designers charge. (toughnickel.com)
Get comfortable with book design terms so you can best communicate with your cover and interior layout designer. (millcitypress.net)
You'll spend a little extra to have your book formatted to suit digital as well as print formats but many layout designers will include it in a design package. (booklaunchers.com)