diff --git a/README.md b/README.md
index f9de593..c432a31 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@ eventdb
 
 little tools to convert lists of events
 
-Take an Excelsheet and convert it to an ics-file.
+Take an spreadsheet and convert it to an ics-file.
 
 Prerequisites
 =============
@@ -12,3 +12,48 @@ Prerequisites
 * rem2ics https://github.com/scy/rem2ics
 * rem2html https://github.com/SwissKid/rem2html
 * make https://www.gnu.org/software/make/
+
+Sourcefiles
+===========
+* remind-scripts for repeating events like Valentine's Day
+* .csv files for your events
+
+CSV-format
+==========
+I use quite a simple format here
+
+D;M;Y;D;M;Y;Name;Location;City,Country,URL
+
+Just place your file(s) in the source directory.
+
+Remind-scripts
+==============
+Remind is an awesome swiss army knive for calendars and alarms.
+Especially for repeating things like "every last friday of the month", try that with cron.
+The only problem is, it does not work well with "event lasts from 1.sep to 10.oct".
+Thouse events should be put in the csv.
+I also use remind here as processor for the html-calendar and for the ics.
+
+Output
+======
+* events-ikiwiki.csv, use it with events.mdwn in ikiwikis table directive https://ikiwiki.info/ikiwiki/directive/table/
+* events-remind.rem, a basic remind-script with all events
+* events.ics, import it to your calendar
+* events.html, a html calendar
+
+Scripts
+=======
+* Makefile, the glue for everything. Replace it with a shell script according to your needs.
+
+Directories
+===========
+* output, grab your results from here
+* scripts, this is where the magic happens
+* source, put your files here
+* temp, stageing directory for scripts
+
+Future Versions
+===============
+* I'm not happy with the ics, basically it's just the date and the name of the event.
+* export to org-mode
+* import of ics-files