diff --git a/README.md b/README.md
index b7692a4..c488205 100644
--- a/README.md
+++ b/README.md
@@ -6,8 +6,46 @@
 ### Logbuch
 - Log with activities
 
+#### Tables
+- boats
+	- id
+	- name
+	- amount_seats
+- session
+	- id
+	- ship_master (Schiffsführer)
+	- ship_master_only_steered (default: false)
+	- departure (Datetime)
+	- Option<arrival> (Datetime) // None -> on water
+	- destination
+	- Option<km> (prefilled from destination)
+	- comments
+	- type (normal, Wanderfahrt)
+- rowers
+	- session_id
+	- user_id
+- damages
+	- boat_id
+	- desc
+	- user_id_created
+	- created_at
+	- user_id_fixed
+	- fixed_at
+	- lock_boat (default: false), if true: noone can use this boat
+
 ### Guest-Scheckbuch
+- guest_trip
+	- guest_user_id
+	- amount_trips
+	- paid_to_user_id
+- guest_trip_session
+	- guest_trip_id
+	- session_id
+
 ### Bootsreservierungen
+- Confirmation required?
+- How long in advance is it possible?
+- Default reservations for some regular events (A+F, USI, ...)?
 
 ## Backlog (i.e. don't work on this now)
 ### Sync w/ nextcloud