模板 tagged Book
Whether you’re writing fiction or non-fiction, a short story or long textbook, these templates and examples provide a fast and effective way to start composing your latest work. All the required components – such as chapters, sections, title pages, glossaries, acknowledgements -- are set out ready for your content. Just open the template and start writing!
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Sleek Template
Sleek Template is a minimal collection of LaTeX packages and settings that ease the writing of beautiful documents. While originally meant for theses, it is perfectly suitable for project reports, articles, syntheses, etc. – with a few adjustments, like margins.
It is composed of four separate packages – sleek, sleek-title, sleek-theorems and sleek-listings – each of which can be used individually.
François Rozet

Modelo de livro para Editora UnB
Modelo de livro para a série Ensino de Graduação da Editora UnB (Universidade de Brasília).
Template for book of the category "Ensino de Graduação" (Undergraduate Teaching) of "Editora UnB" (Brasilia University Publisher).
LEONARDO LUIZ E CASTRO

Nice Arabic Book Template
mathbook in Arabic
m.bitar

Design Engineering and Science Template
Template for working on "Design Engineering and Science" book.
Joseph T. Foley

Pretty, Minimalist, Simple Book report format
Minimalist, Easy to use, Pretty, Article based format for book reports meant for people new to LaTeX
Author: Sean_Rai (September 2018)
Description: This is a simple but pretty looking article format. Use this to write book reports, or articles for homework, or for creative writing assignments. This format is targeted towards people who are new to LaTeX, don't want to fight with it, but just want a nice looking article at the end.
Sean_Rai

MIT Press Book Template (New Math)
MIT Press Book Template from https://mitpress.mit.edu/content/guidelines-authors-preparing-manuscript-files-latex
Amy Hendrickson

Template for a chapter of an Ouvrage-Hermes edited collection
This template is to write a chapter of an Ouvrage-Hermes edited collection.
The edited collection is when the authors of chapters varies in the book.