Overleaf template to visualize the layout of a book prepared with \documentclass[twoside]{book}

This template, written using LuaLaTeX, accompanies the blog post Taming LaTeX’s Page Layout: A Template and Toolset for Book Authors. It provides tools for visualizing the layout of a book that will be produced with LaTeX's book class file ((i.e., via \documentclass[twoside]{book}). The template is not intended for final book production but to provide a tool for rapid prototyping of different paper sizes, book sizes and page margins. It overlays the book page with borders and also draws rulers rulers (using a mm scale) for you to visually inspect and check measurements. Each time you successfully typeset a document the template also writes out a file called "mypagesetup.tex" that contains the LaTeX code to set the various parameters needed to implement your own layout using book.cls: download your project, extract "mypagesetup,tex" and include that file into your own project.