It looks like this, and I would like to have all the lines with the same margin.

a

All of those are chapters, and Bibliography ad list of figures are chapters too, so I don't know why it looks like that.

Thank you for your answers. Sorry for not being very specific. I have this code:

\documentclass[12pt, notitlepage]{report}

\usepackage[style=numeric, backend=bibtex, sorting=nyvt]{biblatex}

\begin{document}
\renewcommand{\chaptername}{}
\renewcommand{\thechapter}{}%I use this command to eliminate the numbers of the chapters

\tableofcontents

\chapter{Introduction}

\chapter{Research}

\printbibliography
\end{document}

And I get this:

I would like to have the bibliography at the same level as the other chapters, or viceversa, the chapters at the same level as the bibliography.

• Welcome to TeX.SX! Please help us help you and add a minimal working example (MWE) that illustrates your problem. Reproducing the problem and finding out what the issue is will be much easier when we see compilable code, starting with \documentclass{...} and ending with \end{document}. – egreg Nov 29 '15 at 0:37
• So, do i get this right, your question is: How to get unnumbered chapters? – Johannes_B Nov 29 '15 at 12:03
• No, my question is: How can "Bibliography" be at the same level as "Introduction" and "Research" in the table of contents? – Oscar Nov 29 '15 at 12:14
• Why are you changing the commands for chaptername and thechapter? – Johannes_B Nov 29 '15 at 12:22
• Note also, that your way created a vertical shift in the chapter title for the numbered chapters. – Johannes_B Nov 29 '15 at 12:46

Set the counter for secnumdepth to get unnumbered chapter.

\documentclass[12pt, notitlepage]{report}

\usepackage[nottoc]{tocbibind}
\usepackage{geometry}
\geometry{showframe}
\usepackage[style=numeric, backend=bibtex, sorting=nyvt]{biblatex}

\setcounter{secnumdepth}{-1}
\begin{document}

\tableofcontents

\listoffigures
\listoftables
\chapter{Introduction}
\cite{companion}
\chapter{Research}
\end{document}
• Thank you! The \setcounter{secnumdepth}{-1} works perfect – Oscar Nov 29 '15 at 12:43

Try to add \usepackage[titles]{tocloft} then \setlength{\cftbeforechapskip}{2mm} in the preambule of your document.

Edit: This last answer had nothing to do with the problem apparently. For your problem, defining the heading of the bibliography seems to do the job (at least for the bibliography). Add

\chapter{#1}}

and remove the \addtocontents line. The MWE is (I had to create a dummy bibliography to have it appearing)

\documentclass[12pt, notitlepage]{report}

\usepackage[style=numeric, backend=bibtex, sorting=nyvt]{biblatex}

\chapter{#1}}

\usepackage{filecontents}

\begin{filecontents}{\jobname.bib}
@misc{A01,
author = {Author, A.},
year = {2001},
title = {Alpha},
}
\end{filecontents}

\begin{document}
\renewcommand{\chaptername}{}
\renewcommand{\thechapter}{}%I use this command to eliminate the numbers of the chapters

\tableofcontents

\chapter{Introduction}

Some text.\cite{A01}

\chapter{Research}