diff --git a/users_comments.md b/users_comments.md
index 9ba481d2..bdcc1ce9 100644
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@@ -259,6 +259,12 @@ Thanks a lot for this amazing set of very useful librarires!
 
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+Dear Atsushi Sakai, <br> <br>This is probably one of the best open-source robotics based Algorithms I have seen so far. Thank you for posting this knowledge with other engineers. It will definitely help soon to become engineers like myself.
+
+--Don
+
+---
+
 # Citations
 
 1. B. Blaga, M. Deac, R. W. Y. Al-doori, M. Negru and R. Dǎnescu, "Miniature Autonomous Vehicle Development on Raspberry Pi," 2018 IEEE 14th International Conference on Intelligent Computer Communication and Processing (ICCP), Cluj-Napoca, Romania, 2018, pp. 229-236.