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+++ b/README.md
@@ -2,8 +2,22 @@
 This is a fork of cbassa's sattools to try to get it to work with
 free software giza instead of proprietary and unmaintained pgplot.
 
+
 # Install
-In Debian: `libgiza0`.
+In Debian: `libgiza0` etc.
+
+
+# Giza
+This is a sample how `skymap` should render, in this case using
+`pgplot` (thx pierros):
+
+![skymap-pgplot](img/skymap-pgplot.png)
+
+This is how `skymap` renders "out-of-the-box" using `giza` as a
+drop-in replacement for `pgplot`:
+
+![skymap-giza rev 0](img/skymap-giza-0.png)
+
 
 # Upstream
 See `README-upstream.md`.
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