diff --git a/.gitignore b/.gitignore
index 8263abc..a5529ff 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,5 @@
+**/.DS_Store
+
 **/.vscode/**
 **/doc/html/**
 **/doc/latex/**
diff --git a/relazione/images/slides-merenda/1.png b/relazione/images/slides-merenda/1.png
new file mode 100644
index 0000000..37bc855
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diff --git a/relazione/images/slides-merenda/2.png b/relazione/images/slides-merenda/2.png
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index 0000000..656359b
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index 0000000..62bea48
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diff --git a/relazione/images/slides-merenda/4.png b/relazione/images/slides-merenda/4.png
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index 0000000..7e87cf7
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diff --git a/relazione/images/slides-merenda/5.png b/relazione/images/slides-merenda/5.png
new file mode 100644
index 0000000..65e66a7
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diff --git a/relazione/slides-merenda.key b/relazione/slides-merenda.key
new file mode 100755
index 0000000..ca60c3c
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diff --git a/slides-colli.pdf b/slides-colli.pdf
new file mode 100644
index 0000000..e845769
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diff --git a/slides-merenda.pdf b/slides-merenda.pdf
new file mode 100644
index 0000000..2414af0
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