diff --git a/.gitattributes b/.gitattributes
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--- a/.gitattributes
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@@ -1 +1,2 @@
 *.pdf filter=lfs diff=lfs merge=lfs -text
+*.png filter=lfs diff=lfs merge=lfs -text
diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -3,7 +3,13 @@
 [![en](https://img.shields.io/badge/lang-en-red.svg)](https://git.kuschel.at/latex-kalender/README.md)
 [![de](https://img.shields.io/badge/lang-de-green.svg)](https://git.kuschel.at/latex-kalender/README-DE.md)
 
+The package used defines a macro \Kalender, which takes one argument, and generates a calendar for the year the argument specifies.
+The calendar provides a table of conversion of days to day of week, for the whole year plus December of the previous year and January
+of the following year.
 
+The macros use packages calc and ifthen.
+
+![The Kalender](img/kalender2025-1.png){:height="36px" width="36px"}
 
 # Kalendererstellung in Latex
 
diff --git a/img/kalender2025-1.png b/img/kalender2025-1.png
new file mode 100644
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+version https://git-lfs.github.com/spec/v1
+oid sha256:8d7760f1e9edbfbdb9267b737a75e96410497742e2edaecbb934cdd2250adfc1
+size 204803