diff --git a/Home.md b/Home.md
index 85de2c6..ac96dc5 100644
--- a/Home.md
+++ b/Home.md
@@ -1,7 +1,10 @@
 # radiation-tagger
 
-Willkommen im Wiki.
+Welcome to the documentation of radiation-tagger.
 
 ## Quick-Start guide
 
-[Preparation](/wiki/preparation) for your foto-tour.
\ No newline at end of file
+[Preparation](/wiki/preparation) for your foto-tour.
+[Download radiation](wiki/download_rad) log.
+[Download gps](wiki/download_gps) log.
+[How to use rad-tag](wiki/howto_rad_tag).
diff --git a/preparation.md b/preparation.md
index ba5200d..07ae60f 100644
--- a/preparation.md
+++ b/preparation.md
@@ -48,6 +48,8 @@ If you use the `geigerlog` tool as described here, make sure your Notebook timez
 
 Open `GeigerLog`, connect to the device and select Device -> GMC Series -> Set Date+Time:
 
+![Set Date and Time][geigerlog_set_datetime]
+
 ```
 ==== Set Date&Time of GMC Device ================================================
 Date and Time from device is: 2020-04-22 18:12:50
@@ -56,4 +58,6 @@ Date and Time from computer is:2020-04-22 18:09:52
 
 Setting device time to computer time
 New Date and Time from device is:2020-04-22 18:09:52
-```
\ No newline at end of file
+```
+
+[geigerlog_set_datetime]: images/geigerlog_set_datetime.png
\ No newline at end of file