diff --git a/research/readers.md b/research/readers.md
index 12e0cdc1f26e4df0527f2724cd22498f746e552c..7b9f28557db45b9a49bd0c5b984167fe22081bff 100644
--- a/research/readers.md
+++ b/research/readers.md
@@ -78,6 +78,11 @@ Vide [export-kobo](https://github.com/pettarin/export-kobo).
 
     /mnt/onboard/.adds/koreader/settings/SSH/authorized_keys
 
+#### Folders
+
+* On device: /mnt/onboard/.adds/koreader
+* On PC: $HOME/.config/koreader
+
 ### Misc
 
 * [OPDS](https://wiki.mobileread.com/wiki/OPDS)