Format Your Book for KDP in One Day is a practical guide for self-publishing authors preparing a manuscript for publication through Amazon Kindle Direct Publishing (KDP). Written in a clear, step-by-step format, the guide explains the fundamentals of formatting both eBooks and paperbacks using Microsoft Word, including paragraph styles, chapter headings, scene breaks, tables of contents, margins, gutters, headers, footers, front matter, exporting files, and preparing a manuscript for upload. Designed for beginning and independent authors, it emphasizes professional formatting practices that improve readability and help create publication-ready files for KDP.