diff --git a/intro/about_lukasz.md b/intro/about_lukasz.md
deleted file mode 100644
index 7e1b2f2..0000000
--- a/intro/about_lukasz.md
+++ /dev/null
@@ -1,48 +0,0 @@
-<!-- .slide: data-background="img/lukasz.jpg" -->
-
-<h2 style="text-shadow: 2px 2px black;">Łukasz Ziobroń</h2>
-<div class="box fragment" style="width: 45%; left: 0; top: 100px;">
-
-### Not only a programming XP
-
-* Trainer & DevOps @ Coders School
-* C++ and Python developer @ Nokia & Credit Suisse
-* Team leader & Trainer @ Nokia
-* Scrum Master @ Nokia & Credit Suisse
-* Code Reviewer @ Nokia
-* Web developer (HTML, PHP, CSS) @ StarCraft Area
-
-</div>
-
-<div class="box fragment" style="width: 45%; right: 0; top: 100px;">
-
-### Training experience
-
-* C++ trainings @ Coders School
-* Practical Aspects Of Software Engineering @ PWr & UWr
-* Nokia Academy @ Nokia
-* Internal corporate trainings
-
-</div>
-
-<div class="box fragment" style="width: 45%; left: 0; top: 400px;">
-
-### Public speaking experience
-
-* code::dive conference
-* code::dive community
-* Academic Championships in Team Programming
-
-</div>
-
-<div class="box fragment" style="width: 45%; right: 0; top: 400px;">
-
-### Hobbies
-
-* StarCraft Brood War & StarCraft II
-* Motorcycles
-* Photography
-* Archery
-* Andragogy
-
-</div>
diff --git a/intro/about_you.md b/intro/about_you.md
deleted file mode 100644
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--- a/intro/about_you.md
+++ /dev/null
@@ -1,4 +0,0 @@
-## Let's get to know each other
-
-* Your secondary programming language
-* Your favourite game
diff --git a/intro/coffee_break.md b/intro/coffee_break.md
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--- a/intro/coffee_break.md
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@@ -1,4 +0,0 @@
-<!-- .slide: data-background="#6f4e37" -->
-# Break
-
-## ☕️ <!-- .element style="font-size: 5em"-->
diff --git a/intro/contract.md b/intro/contract.md
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--- a/intro/contract.md
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@@ -1,6 +0,0 @@
-## Contract
-
-* <!-- .element: class="fragment fade-in" --> 🎰 Vegas rule
-* <!-- .element: class="fragment fade-in" --> 🗣 Discussion, not a lecture
-* <!-- .element: class="fragment fade-in" --> ☕️ Additional breaks on demand
-* <!-- .element: class="fragment fade-in" --> ⌚️ Be on time
diff --git a/intro/img/lukasz.jpg b/intro/img/lukasz.jpg
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diff --git a/intro/index.html b/intro/index.html
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--- a/intro/index.html
+++ b/intro/index.html
@@ -54,15 +54,15 @@ <h3>Łukasz Ziobroń</h3>
                 </section>
 
                 <section>
-                    <section data-markdown="about_you.md" data-separator-vertical="^___"
+                    <section data-markdown="../../intro/about_you.en.md" data-separator-vertical="^___"
                         data-separator-notes="^Note:">
                     </section>
 
-                    <section data-markdown="about_lukasz.md" data-separator-vertical="^___"
+                    <section data-markdown="../../intro/about_lukasz.en.md" data-separator-vertical="^___"
                         data-separator-notes="^Note:">
                     </section>
 
-                    <section data-markdown="contract.md" data-separator-vertical="^___"
+                    <section data-markdown="../../intro/contract.en.md" data-separator-vertical="^___"
                         data-separator-notes="^Note:">
                     </section>
                 </section>
@@ -111,11 +111,11 @@ <h3>Łukasz Ziobroń</h3>
                     </section>
                 </section>
 
-                <section data-markdown="coffee_break.md" data-separator-vertical="^___"
+                <section data-markdown="../../intro/coffee_break.en.md" data-separator-vertical="^___"
                     data-separator-notes="^Note:">
                 </section>
 
-                <section data-markdown="lunch_break.md" data-separator-vertical="^___"
+                <section data-markdown="../../intro/lunch_break.en.md" data-separator-vertical="^___"
                     data-separator-notes="^Note:">
                 </section>
 
diff --git a/intro/lunch_break.md b/intro/lunch_break.md
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-<!-- .slide: data-background="#cf802a" -->
-# Lunch break
-
-## 🍝 <!-- .element style="font-size: 5em"-->