# Removing blank pages

I am trying to remove the blank pages between the various sections of the document, but I don't know which command I can use. I already tried to remove the command: \afterpage{\blankpage} but the blank pages still appear. How can I do this?

\documentclass[11pt]{book}
% Omitting Page Numbers
\pagenumbering{gobble}

% Packages
\usepackage[a4paper,left=2.5cm,right=2.5cm,top=4cm,bottom=4.9cm]{geometry}
\renewcommand{\baselinestretch}{1.15}
\usepackage{graphicx}
\usepackage{caption}
\usepackage{fontspec}
\usepackage{natbib}
\setcitestyle{square}
\usepackage{afterpage}  % blank pages
\usepackage{multirow}  % table
\usepackage[table, dvipsnames]{xcolor}  % table
\usepackage{xpatch}  % table
\usepackage{tabu}  % table
\usepackage{hhline}  % cell color does not overlap cell line
\usepackage{breakcites}  % references do not go though margins
\usepackage{sectsty}  % change chapter title size
\setcounter{tocdepth}{3}  % four level contents
\setcounter{secnumdepth}{3}  % numbered four level contents
\usepackage{amsfonts}  % math
\usepackage{amsmath}  % math
\usepackage[nottoc,notlof,notlot]{tocbibind}
\usepackage[pagebackref]{hyperref}  % references

\newcommand{\rectangle}{{  % rectangle
\ooalign{$\sqsubset\mkern3mu$\cr$\mkern3mu\sqsupset$\cr}
}}

\newcommand\BibTeX{B{\sc ib}\TeX}

% References
\hypersetup{
filecolor=MidnightBlue,
citecolor=BrickRed,
urlcolor=MidnightBlue,
bookmarksopen=true,
pdfpagemode=UseOutlines,
pdfstartpage=1
}

% Blank Page
\newcommand\blankpage{
\null
\thispagestyle{empty}
\newpage}

% Hide Blank Pages Numbers + Headers
\let\origdoublepage\cleardoublepage
\newcommand{\clearemptydoublepage}{%
\clearpage
{\pagestyle{empty}\origdoublepage}%
}

% Space between numbers and text
\geometry{footskip=2.45cm}

\begin{document}

\begingroup

\newgeometry{left=3cm, right=3cm, top=1cm, bottom=1.2cm}
\renewcommand{\baselinestretch}{1.9}

%\include{parts/capa_provisoria}
\include{parts/capa_definitiva}

\afterpage{\blankpage}

\endgroup

% Preamble for Thesis
\setmainfont{Times New Roman}
\newgeometry{left=2.5cm,right=2.5cm,top=2.5cm,bottom=4.9cm}
\renewcommand{\baselinestretch}{1.15}
\pagenumbering{Roman}
\pagestyle{plain}
\let\cleardoublepage\clearemptydoublepage  % hide blank pages numbers + headers

\include{parts/acknowledgements}

\include{parts/abstract}

\include{parts/resumo}

\include{parts/contents}

\include{parts/list_of_figures}

\include{parts/list_of_tables}

\afterpage{\blankpage}

% After Introductory Pages
\pagenumbering{arabic}
\pagestyle{fancy}

\chaptertitlefont{\Huge} % to fit chapter title to one line
\chapternumberfont{\Huge}

\include{parts/introduction}

\include{parts/related_work}

\include{parts/a_silver_standard_corpus_of_phenotype_gene_relations}

\include{parts/extracting_phenotype-gene_relations}

\include{parts/conclusion}


• Try adding openany to the \documentclass options. The default is openright. – Bernard May 7 at 14:57
• One way to remove ALL the blank pages is to use the [oneside] option for book. Another is use \let\cleardoublepage=\clearpage. \blankpage is just a bad idea. – John Kormylo May 7 at 15:18
• \blankpage forces a blank page – David Carlisle May 7 at 15:36
• If saw "Thesis" in your preamble. If you are trying to write your thesis, consider left the blank pages. Spanisn traslation: Si esto es para tu tesis, hazme caso, deja las puñeteras hojas en blanco y usa openany en trabajitos de poca monta, notas de clase y cosas así, pero no en tu tesis, – Fran May 7 at 21:12
• if you are setting the thesis on two sides of the paper like a book then iit will be very strange if you do not ensure that you always have odd page numbers on the right and even on the left, your \blankpage breaks that. It is also most common (but not universal) for chapters to always start on the right hand page hence the blank page, but if you want to allow chapters on the left there is no need for all your redefinitions just use [openamy] or if you do not want to distinguish left and right ages at all, use [oneside] – David Carlisle May 8 at 1:29