LaTeX book templates to write your next best seller—whether you’re writing fiction or non-fiction, a short story or long textbook.
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Simple LaTeX template for books and book-style compilations, written by Amber Jain. Source: https://github.com/amberj/latex-book-template. This template was originally published on ShareLaTeX and subsequently moved to Overleaf in November 2019.

Lightly modified from TheDarkLumo on reddit

Landscape template for books, includes the code of a collage of portraits.

This document shows how you can get ePub/eBook-like formatting in LaTeX with the memoir document class. You can't yet export directly to ePub from writeLaTeX, but you can export to PDF. To get ePub, you can download the LaTeX source from writeLaTeX and run it through a format conversion tool, such as htlatex to get HTML, and then go from HTML to ePub with a tool like Sigil or Calibre. See this thread on Stack Overflow for more advice.

A book template styled after Einstein's "Relativity". Includes styling examples for page numbering, sections and subsections, equations, numbers, and more.

Esta plantilla esta pensada para que diversos autores creen su propio libro de sueños y aprendan LaTex a la par a través del proyecto Calladium. Más información aquí: https://rtonalli.gitlab.io/calladium/ ---- This template aims to help Spanish-speaking non-technical-savvy writers and students to learn how to use LaTeX and Overleaf for their writing projects. For more information, please visit: https://gitlab.com/rtonalli/calladium

This book cover template is written with the bookcover LaTeX document class.

https://github.com/mohuangrui/latexspine LaTeX Template for Producing Book Spine

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