diff --git a/How-does-RustDesk-work?.md b/How-does-RustDesk-work?.md
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+Below is drawn by [asur4s](https://github.com/asur4s), https://github.com/rustdesk/rustdesk/issues/594#issuecomment-1138342668.
+
+![image](https://user-images.githubusercontent.com/71636191/170462028-9b481abb-40bd-49df-8c05-8019325761ee.png)
+
+![image](https://user-images.githubusercontent.com/71636191/170462043-c4aefda1-3fb6-43e8-a54b-d3dec1590930.png)