diff --git a/README.md b/README.md
index cb4eea8..53fff73 100644
--- a/README.md
+++ b/README.md
@@ -684,6 +684,7 @@ performance of any of your sites from across the globe.
:small_orange_diamond: strace-little-book - a little book which introduces strace.
:small_orange_diamond: http2-explained - a detailed document explaining and documenting HTTP/2.
:small_orange_diamond: http3-explained - a document describing the HTTP/3 and QUIC protocols.
+ :small_orange_diamond: Nginx Admin's Handbook - describes how to improve NGINX performance, security and other important things.
:small_orange_diamond: openssh guideline - is to help operational teams with the configuration of OpenSSH server and client.