% simple_book.tex

\documentclass[12pt]{book}
\usepackage[
    papersize={8.5in,11in},
    height=9.5in,
    top=0.8in,
    bindingoffset=0.5in
]{geometry}

\begin{document}

\begin{titlepage}
\centering
\vspace*{3in}
{\LARGE Simple  Book Title\\ \small by \\ Book Author}
\end{titlepage}

\mainmatter

\chapter{First Chapter Title}
First chapter text goes here.\\
(This is an example of chapter with a title.)

\chapter{}
Second chapter text goes here.\\
(This is an example of a chapter without a title.)

\end{document}
