When you create a paperback book on KDP, you need to format and upload two files: a manuscript file, which is the interior of your book including front matter, body matter, and back matter, and a cover file, which is the outside of your book including the front, back, and spine.
Having your book manually formatted by a professional that meet complex, professional-standard design specifications for kdp paperback ( print ) can cost anywhere from $80 to $1,500 according to complexity and delivery timeline. Feel free to ask for SankalpArt's Book Publishing Packages!
KDP Children's Book Formatting
KDP E-Book Formatting