%%
%% The LaTeX Companion, 3ed
%%
%% Example 3-5-40 on page I-231 in "enotez --- Endnotes, an alternative to footnotes".
%%
%% Copyright (C) 2022 Frank Mittelbach
%%
%% It may be distributed and/or modified under the conditions
%% of the LaTeX Project Public License, either version 1.3c
%% of this license or (at your option) any later version.
%%
%% See
https://www.latex-project.org/lppl.txt for details.
%%
\documentclass{tlc3exa}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{135.0pt}
\setlength\parindent{0pt}
% for the book examples we shorten the vertical spaces
\makeatletter
\renewcommand\section{\@startsection{section}{1}{\z@}%
{-1.25ex \@plus-1ex \@minus-.2ex}%
{.5ex}%
{\normalfont\large\bfseries}}
\makeatother
%StartShownPreambleCommands
\usepackage[inline]{enumitem}
\setlist[itemize]{itemjoin=\hspace{1em plus 2pt}}
\usepackage{enotez}
\setenotez{list-name={Section Notes}}
\DeclareInstance{enotez-list}{inline}{list}
{list-type = itemize*}
\AtEveryEndnotesList{General introductory text\ldots}
%StopShownPreambleCommands
\begin{document}
This is text.\endnote{The first\endnote{A nested
note\ldots\endnote{\ldots which itself contains a
note.}} endnote.\endnote{Another second-level note with
more text to show its formatting in the note section.}}
And this is more text.\endnote{The third
endnote.\endnote{Also with a second-level note.}}
\printendnotes[inline]
\end{document}