diff --git a/book/book.tex b/book/book.tex
index 5c58020..b32f1fd 100644
--- a/book/book.tex
+++ b/book/book.tex
@@ -17,13 +17,9 @@
 \ifdefined\HCode\else\tableofcontents\fi
 
 \input{intro/foreword}
-
 \input{intro/preface}
-
-\chapter{Acknowledgements}
 \input{intro/acknowledgements}
 
-
 \mainmatter
 
 \chapter{The history of sourdough}
diff --git a/book/intro/acknowledgements.tex b/book/intro/acknowledgements.tex
index 0dcc1a1..2d66c05 100644
--- a/book/intro/acknowledgements.tex
+++ b/book/intro/acknowledgements.tex
@@ -1,5 +1,6 @@
+\chapter{Acknowledgements}%
+\label{ch:Acknowledgements}
 This book would not have been possible without your help.
-
 With all your donations I~have been able to focus on finishing
 this book. Your continuous support allows me to focus
 on improving this book even more.
diff --git a/book/supporters.csv b/book/supporters.csv
index 95fd4e6..0f65567 100644
--- a/book/supporters.csv
+++ b/book/supporters.csv
@@ -1,8 +1,8 @@
 Abu,
 Adam,
 Alicia,
-Andreas~Schmid,
-Anna~G.,
+Andreas Schmid,
+Anna G.,
 anonnn,
 aomanor,
 Aurore,
@@ -14,21 +14,21 @@ Blusie,
 Brigitta,
 Brockman,
 BTSkete,
-C~Fazio,
-Cal~Kotz,
+C Fazio,
+Cal Kotz,
 Case,
-Charlene~Adkins,
-Chris~DuBosq,
-Chris~G,
-Christiane~B,
+Charlene Adkins,
+Chris DuBosq,
+Chris G,
+Christiane B,
 Christine,
 Chrysanna,
-Colleen~Guidone,
+Colleen Guidone,
 Danieel,
 Daniel,
 David,
 Dee,
-Desiree~S,
+Desiree S,
 DKitSeattle,
 dlenkes,
 douglas.penna,
@@ -36,43 +36,43 @@ DRey,
 Duivelsjong,
 Ellie,
 Ethan,
-Francois~le Danois,
+Francois le Danois,
 Geoff,
 Guillermo,
 HansAndreManfredsson,
-Heather~Currier,
+Heather Currier,
 Hito,
 IlseFA,
-Inma~McLeish,
+Inma McLeish,
 Jackie,
-Jan~Chrillesen,
+Jan Chrillesen,
 Jane,
 Jenny,
 Jessicat,
 JimJo,
-John~E Bergman,
+John E Bergman,
 Jonathan,
 JorisBelmans,
-Jose~Lausuch,
-Judith~Roth,
+Jose Lausuch,
+Judith Roth,
 Julian,
-Justin~Dybedahl,
+Justin Dybedahl,
 JZ,
 Kankiti,
-Kathy~Goldstein,
-kathy~word,
-Ken~Miller,
-Kirill~Sivy,
+Kathy Goldstein,
+kathy word,
+Ken Miller,
+Kirill Sivy,
 Kuchengnom,
 Leon,
 Lili1232000,
-Lise~W,
-Lizabeth~Kelly,
+Lise W,
+Lizabeth Kelly,
 lou,
-Lukasz~G,
+Lukasz G,
 Manse,
 Marcel,
-Mariana~Marianito,
+Mariana Marianito,
 Marie,
 Marijke,
 Mark,
@@ -81,18 +81,18 @@ Medea,
 Meghann,
 Melissa,
 Michaela,
-Michaela~Gáliková,
+Michaela Gáliková,
 mieke,
 Mimi,
-moj~shar,
+moj shar,
 MonicaKS,
-Nancy~Anne Martin,
-Nancy~Keary,
+Nancy Anne Martin,
+Nancy Keary,
 Nick,
 nirpf,
-Pascal~H,
-Paula~Jean~McKenney~Valadez,
-Pauline~Roberts~(Capyboppy),
+Pascal H,
+Paula Jean McKenney Valadez,
+Pauline Roberts (Capyboppy),
 Pitdepitis,
 Rachelle and Omar,
 RaptorRich,
@@ -104,9 +104,9 @@ Sander,
 Sandy,
 Sarah,
 Scooter,
-Scott~Mattson,
+Scott Mattson,
 SebastianKlocke,
-Sharon~Eicher,
+Sharon Eicher,
 ShelleyMierle,
 SheriK,
 Spencer,
@@ -117,11 +117,11 @@ Sune,
 Susan,
 Sven,
 tbonewilly,
-Thales~Mello,
+Thales Mello,
 TheRealBruce,
 Usliv,
-Vassil~Dichev,
-Vladimir~Smirnov,
+Vassil Dichev,
+Vladimir Smirnov,
 Voicu,
 Zika,
 Zoltan
diff --git a/book/troubleshooting/misc.tex b/book/troubleshooting/misc.tex
index bc59a38..872944c 100644
--- a/book/troubleshooting/misc.tex
+++ b/book/troubleshooting/misc.tex
@@ -320,14 +320,14 @@ and convert it into acetic acid. Acetic acid has a very pungent smell.
 When tasting acetic acid, the flavor of your bread is often perceived
 as quite strong.
 
-\begin{flowchart}[!htb]
+\begin{figure}[!htb]
 \begin{center}
   \input{figures/fig-ethanol-oxidation.tex}
   \caption[Acetic acid creation]{Oxygen is required to create acetic
       acid~\cite{acetic+acid+production}.}%
   \label{fig:ethanol-oxidation}
 \end{center}
-\end{flowchart}
+\end{figure}
 
 This is nothing bad. But if you would like to change
 the flavor of your final bread, consider converting