diff --git a/slides/chapter-02.de.md b/slides/chapter-02.de.md
index 225d2c9..5cde071 100644
--- a/slides/chapter-02.de.md
+++ b/slides/chapter-02.de.md
@@ -6,11 +6,8 @@ Wie funktioniert L<sup style="font-weight: bold; font-size: 73%; margin-left: -.
 
 @slide(layout=content-and-preview)
 
-@todo
-Überschrift
-
 @title
-
+WYSIWaaas?
 
 @content
 ### What You See Is What You Get {data-category=Word}
@@ -47,13 +44,13 @@ Was brauchen wir dazu?
 ### Editor
 enthält unseren Quelltext mit allen Befehlen zur semantischen Gliederung
 
-TeXstudio, TeXMaker
+[TeXstudio](http://www.texstudio.org/), [TeXMaker](https://www.xm1math.net/texmaker/)
 
 @column-two
 ### Compiler
 erstellt aus dem Quelltext ein fertig formatiertes PDF-Dokument
 
-MiKTeX, TeX Live, MacTeX
+[MiKTeX](http://miktex.org/), [MacTeX](http://tug.org/mactex/), [TeX Live](https://tug.org/texlive/)
 
 
 @slide(layout=wide-content)
diff --git a/slides/chapter-02.en.md b/slides/chapter-02.en.md
index e005bda..459ebb4 100644
--- a/slides/chapter-02.en.md
+++ b/slides/chapter-02.en.md
@@ -1,16 +1,13 @@
 @slide(layout=chapter-slide)
 
 @title
-How does<br/>L<sup style="font-weight: bold; font-size: 73%; margin-left: -.25em; margin-right: -.05em; position: relative; top: .2em">A</sup>T<sub style="font-size: 100%; margin-left: -.1em">E</sub>X work?
+How does <br/>L<sup style="font-weight: bold; font-size: 73%; margin-left: -.25em; margin-right: -.05em; position: relative; top: .2em">A</sup>T<sub style="font-size: 100%; margin-left: -.1em">E</sub>X work?
 
 
 @slide(layout=content-and-preview)
 
-@todo
-Heading
-
 @title
-
+WYSIWhat?
 
 @content
 ### What You See Is What You Get {data-category=Word}
@@ -47,13 +44,13 @@ What do we need?
 ### Editor
 provides our source code with all the commands that structure the text semantically
 
-TeXstudio, TeXMaker
+[TeXstudio](http://www.texstudio.org/), [TeXMaker](https://www.xm1math.net/texmaker/)
 
 @column-two
 ### Compiler
 takes the source code and creates a PDF document ready for publication
 
-MiKTeX, TeX Live, MacTeX
+[MiKTeX](http://miktex.org/), [MacTeX](http://tug.org/mactex/), [TeX Live](https://tug.org/texlive/)
 
 
 @slide(layout=wide-content)
diff --git a/slides/chapter-03.en.md b/slides/chapter-03.en.md
index 369d1da..145f491 100644
--- a/slides/chapter-03.en.md
+++ b/slides/chapter-03.en.md
@@ -65,7 +65,7 @@ Packages
 ```
 
 * Packages provide additional commands and functionality.
-* There a different packages for different use cases (e.&thinsp;g., formulas, lists, ...).
+* There are different packages for different use cases (e.&thinsp;g., formulas, lists, ...).
 * Before they can be used, they have to be included **within the preamble.**
 
 
@@ -264,7 +264,7 @@ Front matter
 @content
 ``` {.lang-tex .hljs data-source=title.tex}
 \title{The World of Truffles}
-\author{Fooboar Rüssel \\\\ Fachschaft WIAI\thanks{WIe AIn Profi},
+\author{Fooboar Rüssel \\ Fachschaft WIAI\thanks{WIe AIn Profi},
         Otto-Friedrich-Universität Bamberg}
 \date{\today}
 \begin{document}
@@ -272,11 +272,11 @@ Front matter
 \end{document}
 ```
 
-* The values for the entries are stored in the preable.
+* The values for the entries are stored in the preamble.
 * `\maketitle` typesets the front matter within the document environment.
 * The exact appearance depends on the document class.
 * Multiple authors can be joined with `\and`.
-* If no date is given, the current date. A different date can be defined with `\date{}`.
+* If no date is given, the current date will be used. A different date can be defined with `\date{}`.
 
 
 @slide(layout=content-and-preview)
@@ -289,7 +289,7 @@ Front matter
 \documentclass{article}
 \usepackage{babel}
 \title{The World of Truffles}
-\author{Fooboar Rüssel \\\\ Fachschaft
+\author{Fooboar Rüssel \\ Fachschaft
 WIAI\thanks{WIe AIn Profi},
 Otto-Friedrich-Universität Bamberg}
 \date{\today}
@@ -366,7 +366,7 @@ List of figures and list of tables
 \listoftables
 ```
 
-* insert the corresponding index wherever it is called
+* inserts the corresponding index wherever it is called
 * lists the caption of each figure or table by default, but you can also state a special list entry
 
 
@@ -391,7 +391,7 @@ Structure your document and text
 \usepackage{csquotes}
 ```
 
-* ++In the part that is not commented out, **paragraphs** where marked as ‘`//`’. Use real paragraphs instead.
+* ++In the part that is not commented out, **paragraphs** were marked as ‘`//`’. Use real paragraphs instead.
 * ++Uncomment the remaining text. Use the corresponding LaTeX commands for all **headings** (`\section` to `\subsubsection`).
 * ++Add a **table of contents.**